121 詞
詳細 · GRE3000、救命800、紅寶書
ubiquitous
adj. 無處不在的
英文釋義：present everywhere
相似詞：common, universal, omnipresent
相反詞：rare, scarce, individual, uncommon, particular, particular proposition
派生詞：ubiquitousness n., ubiquity n.
用法／搭配：ubiquitous background noise 無處不在的背景噪音
Example · TTS
Consider this case: ubiquitous background noise. （無處不在的）
詳細 · 紅寶書
ucler
潰瘍｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad...
英文釋義：a GRE-level vocabulary item meaning closely related to its core sense in academic English
用法／搭配：核心義：a GRE-level vocabulary item meaning closely related to its core sense in academic English。中文錨點：潰瘍｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad。GRE tip: "ucler" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the ucler of X; a sense / degree / lack of ucler; amid / despite ucler Sentence frame: The debate turns on the ucler of ______. （空格填入與「潰瘍｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad」相關的對象。）
Example · TTS
A clear sense of ucler is crucial to understanding the argument. （潰瘍）
詳細 · 紅寶書
ulterior
未來的；遠處的
英文釋義：lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed); ; - Bertrand Russell; beyond or outside an area of immediate interest; remote; ; - G.B.Shaw
相似詞：subterranean, subterraneous, later, posterior
相反詞：early, middle, anterior
用法／搭配：核心義：lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed)。中文錨點：未來的；遠處的。GRE tip: "ulterior" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an ulterior argument / tone / claim; strikingly / rather ulterior; ulterior enough to... Sentence frame: Her ulterior ______ surprised the reviewers. （名詞請選能被「未來的；遠處的」修飾者，如 approach / critique / silence。）
Example · TTS
Without...any purpose, immediate or ulterior. （未來的；遠處的）
詳細 · 紅寶書
ultimatum
最後通牒｜教學補註：a final peremptory demand
英文釋義：a final peremptory demand
用法／搭配：核心義：a final peremptory demand。中文錨點：最後通牒｜教學補註：a final peremptory demand。GRE tip: "ultimatum" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the ultimatum of X; a sense / degree / lack of ultimatum; amid / despite ultimatum Sentence frame: The debate turns on the ultimatum of ______. （空格填入與「最後通牒｜教學補註：a final peremptory demand」相關的對象。）
Example · TTS
A clear sense of ultimatum is crucial to understanding the argument. （最後通牒）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
ultraconservative
極端保守的
英文釋義：極端保守的
用法／搭配：對非盲偷看極端保守。
Example · TTS
Be ultraconservative about unblinded peeks. （極端保守的）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
ultrafine
超細的
英文釋義：超細的
用法／搭配：超細分箱需要預先指定。
Example · TTS
Ultrafine bins need pre-specification. （超細的）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
ultralight
超輕的
英文釋義：超輕的
用法／搭配：超輕摘要仍要承載限制。
Example · TTS
Ultralight abstracts must still carry limits. （超輕的）
詳細 · 幽默聯想庫 P2-pending 補錄
ultramarine
深藍的
英文釋義：深藍的
用法／搭配：深藍主張需要深藍證據。
Example · TTS
Ultramarine claims need ultramarine evidence. （深藍的）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
ultramodern
超現代的
英文釋義：超現代的
用法／搭配：超現代模型仍需舊稽核。
Example · TTS
Ultramodern models still need old audits. （超現代的）
詳細 · 紅寶書
ultramundane
超越世俗的
英文釋義：a GRE-level vocabulary item meaning closely related to its core sense in academic English
用法／搭配：核心義：a GRE-level vocabulary item meaning closely related to its core sense in academic English。中文錨點：超越世俗的。GRE tip: "ultramundane" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the ultramundane of X; a sense / degree / lack of ultramundane; amid / despite ultramundane Sentence frame: The debate turns on the ultramundane of ______. （空格填入與「超越世俗的」相關的對象。）
Example · TTS
A clear sense of ultramundane is crucial to understanding the argument. （超越世俗的）
詳細 · 幽默聯想庫 P2-pending 補錄
ultrasonic
超音波的
英文釋義：超音波的
用法／搭配：對邊界案例用超音波級細節。
Example · TTS
Use ultrasonic detail on edge cases. （超音波的）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
ultraviolet
紫外線的
英文釋義：紫外線的
用法／搭配：用紫外光照隱藏排除。
Example · TTS
Shine ultraviolet light on hidden exclusions. （紫外線的）
詳細 · 複習詞、救命800、紅寶書
umbrage
n. 生氣｜教學補註：anger
英文釋義：anger
相似詞：offense, resentment
相反詞：defence, defense
派生詞：umbrageous adj.
形近詞：rampage 暴怒 ｜ rampant 猖獗的 ｜ ransack 洗劫掠奪 ｜ umbrage 憤怒
用法／搭配：take umbrage at something 爲某事感到生氣
Example · TTS
In academic English, writers may refer to the take umbrage at something. （生氣）
詳細 · 複習詞
unaffected
真實的；自然的
英文釋義：undergoing no change when acted upon; unaware of or indifferent to
相似詞：insensible, unmoved, untouched
相反詞：affected, moved
派生詞：unaffectedness n.
用法／搭配：核心義：undergoing no change when acted upon。中文錨點：真實的；自然的。GRE tip: "unaffected" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unaffected argument / tone / claim; strikingly / rather unaffected; unaffected enough to... Sentence frame: Her unaffected ______ surprised the reviewers. （名詞請選能被「真實的；自然的」修飾者，如 approach / critique / silence。）
Example · TTS
Fibers remained apparently unaffected by the treatment. （真實的；自然的）
詳細 · 複習詞、救命800、紅寶書
unanimous
adj. 一致同意的
英文釋義：having the agreement of all
相似詞：consentaneous, consentient, solid, whole
相反詞：gaseous, hollow, liquid, fractional, half, partly
派生詞：unanimity n.
形近詞：animus 敵意，基本意圖 ｜ unanimous 一致同意 ｜ magnanimous 寬宏大量
用法／搭配：a unanimous vote 一致同意的投票
Example · TTS
A unanimous decision. （一致同意的）
詳細 · 幽默聯想庫 P2-pending 補錄
unassailable
無可指摘的
英文釋義：無可指摘的
用法／搭配：無可指摘的主張很稀有——展示過程。
Example · TTS
Unassailable claims are rare—show your work. （無可指摘的）
詳細 · 複習詞、救命800、紅寶書
unassuming
adj. 謙遜的｜教學補註：modest
英文釋義：modest
相似詞：unpretentious, humble
相反詞：ostentatious, pretentious, proud
派生詞：unassumingness n.
用法／搭配：an unassuming and kindly man 謙遜和藹的人
Example · TTS
Unassuming to a fault, skeptical about the value of his work. （謙遜的）
詳細 · 紅寶書
unbecoming
不合適的｜教學補註：not in keeping with accepted standards of what is right or proper in polite s...
英文釋義：not in keeping with accepted standards of what is right or proper in polite society
相似詞：indecent, indecorous, uncomely, unseemly, untoward
相反詞：decent, proper, decorous
派生詞：unbecomingness n.
用法／搭配：核心義：not in keeping with accepted standards of what is right or proper in polite society。中文錨點：不合適的｜教學補註：not in keeping with accepted standards of what is right or proper in polite s。GRE tip: "unbecoming" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unbecoming argument / tone / claim; strikingly / rather unbecoming; unbecoming enough to... Sentence frame: Her unbecoming ______ surprised the reviewers. （名詞請選能被「不合適的｜教學補註：not in keeping with accepted standards of what is right or proper in polite s」修飾者，如 approach / critique / silence。）
Example · TTS
Language unbecoming to a lady. （不合適的）
詳細 · 複習詞、紅寶書
unbidden
自願的；未受邀請的
英文釋義：a GRE-level vocabulary item meaning closely related to its core sense in academic English
用法／搭配：核心義：a GRE-level vocabulary item meaning closely related to its core sense in academic English。中文錨點：自願的；未受邀請的。GRE tip: "unbidden" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the unbidden of X; a sense / degree / lack of unbidden; amid / despite unbidden Sentence frame: The debate turns on the unbidden of ______. （空格填入與「自願的；未受邀請的」相關的對象。）
Example · TTS
A clear sense of unbidden is crucial to understanding the argument. （自願的；未受邀請的）
詳細 · 紅寶書
unbosom
吐露；透露
英文釋義：relieve oneself of troubling information
相似詞：relieve
相反詞：enforce
用法／搭配：核心義：to relieve oneself of troubling information。中文錨點：吐露；透露。GRE tip: treat "unbosom" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to unbosom sth; refuse / choose / begin to unbosom; the unbosomming of X Sentence frame: The committee decided to unbosom ______ after ______. （造句時把空格填成符合「吐露；透露」的對象與原因。）
Example · TTS
In the end, they chose to unbosom what they had once defended. （吐露；透露）
詳細 · 幽默聯想庫 P2-pending 補錄
unbounded
無界的
英文釋義：無界的
用法／搭配：無界研究者自由誘發淘篩。
Example · TTS
Unbounded researcher freedom invites fishing. （無界的）
詳細 · 紅寶書
unbridled
自由的；不受限的
英文釋義：remove the bridle from (a horse or mule); not restrained or controlled
相似詞：unbridle, unchecked, uncurbed, ungoverned
相反詞：bridle
用法／搭配：核心義：to remove the bridle from (a horse or mule)。中文錨點：自由的；不受限的。GRE tip: treat "unbridled" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to unbridled sth; refuse / choose / begin to unbridled; the unbridledding of X Sentence frame: The committee decided to unbridled ______ after ______. （造句時把空格填成符合「自由的；不受限的」的對象與原因。）
Example · TTS
Unbridled rage. （自由的；不受限的）
詳細 · 複習詞、救命800、紅寶書
uncanny
n. 離奇的｜教學補註：extraordinary or strange
英文釋義：extraordinary or strange
相似詞：phenomenal, preternatural
相反詞：ordinary, familiar
用法／搭配：the silence is uncanny 靜得出奇
Example · TTS
Stumps...had uncanny shapes as of monstrous creatures. （離奇的）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
uncensored
未經審查的
英文釋義：未經審查的
用法／搭配：保留未經審查的決策日誌。
Example · TTS
Keep an uncensored log of decisions. （未經審查的）
詳細 · 紅寶書
uncharitable
無情的；無仁慈心的
英文釋義：lacking love and generosity; - Charles Reade
相反詞：charitable
用法／搭配：核心義：lacking love and generosity。中文錨點：無情的；無仁慈心的。GRE tip: "uncharitable" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an uncharitable argument / tone / claim; strikingly / rather uncharitable; uncharitable enough to... Sentence frame: Her uncharitable ______ surprised the reviewers. （名詞請選能被「無情的；無仁慈心的」修飾者，如 approach / critique / silence。）
Example · TTS
All pious words and uncharitable deeds. （無情的；無仁慈心的）
詳細 · 紅寶書
uncommited
不負責任的
英文釋義：a GRE-level vocabulary item meaning closely related to its core sense in academic English
用法／搭配：核心義：a GRE-level vocabulary item meaning closely related to its core sense in academic English。中文錨點：不負責任的。GRE tip: "uncommited" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the uncommited of X; a sense / degree / lack of uncommited; amid / despite uncommited Sentence frame: The debate turns on the uncommited of ______. （空格填入與「不負責任的」相關的對象。）
Example · TTS
A clear sense of uncommited is crucial to understanding the argument. （不負責任的）
詳細 · 複習詞、紅寶書
unconscionable
過度的；不合理的
英文釋義：lacking a conscience; greatly exceeding bounds of reason or moderation
相似詞：conscienceless, exorbitant, extortionate, outrageous, steep, usurious
相反詞：gradual
用法／搭配：核心義：lacking a conscience。中文錨點：過度的；不合理的。GRE tip: "unconscionable" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unconscionable argument / tone / claim; strikingly / rather unconscionable; unconscionable enough to... Sentence frame: Her unconscionable ______ surprised the reviewers. （名詞請選能被「過度的；不合理的」修飾者，如 approach / critique / silence。）
Example · TTS
Unconscionable spending. （過度的；不合理的）
詳細 · 複習詞、紅寶書
uncouth
粗俗的｜教學補註：lacking refinement or cultivation or taste
英文釋義：lacking refinement or cultivation or taste
相似詞：coarse, common, rough-cut, vulgar
相反詞：fine, individual, uncommon
派生詞：uncouthness n.
用法／搭配：核心義：lacking refinement or cultivation or taste。中文錨點：粗俗的｜教學補註：lacking refinement or cultivation or taste。GRE tip: "uncouth" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an uncouth argument / tone / claim; strikingly / rather uncouth; uncouth enough to... Sentence frame: Her uncouth ______ surprised the reviewers. （名詞請選能被「粗俗的｜教學補註：lacking refinement or cultivation or taste」修飾者，如 approach / critique / silence。）
Example · TTS
An untutored and uncouth human being. （粗俗的）
詳細 · 填空1300、複習詞、紅寶書
unctuous
油腔滑調的
英文釋義：unpleasantly and excessively suave or ingratiating in manner or speech
相似詞：buttery, fulsome, oily, oleaginous, smarmy, soapy
派生詞：unctuousness n.
用法／搭配：核心義：unpleasantly and excessively suave or ingratiating in manner or speech。中文錨點：油腔滑調的。GRE tip: "unctuous" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unctuous argument / tone / claim; strikingly / rather unctuous; unctuous enough to... Sentence frame: Her unctuous ______ surprised the reviewers. （名詞請選能被「油腔滑調的」修飾者，如 approach / critique / silence。）
Example · TTS
The unctuous Uriah Heep. （油腔滑調的）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
undaunted
不氣餒
英文釋義：不氣餒
用法／搭配：考意錨點：不氣餒
Example · TTS
On the exam, undaunted most nearly means a sense of "不氣餒". （不氣餒）
詳細 · 紅寶書
undercut
廉價出售｜教學補註：the material removed by a cut made underneath
英文釋義：the material removed by a cut made underneath; the tender meat of the loin muscle on each side of the vertebral column
相似詞：tenderloin, cut, undersell
相反詞：expand, switch on, uncut, unmown, untrimmed
用法／搭配：核心義：the material removed by a cut made underneath。中文錨點：廉價出售｜教學補註：the material removed by a cut made underneath。GRE tip: "undercut" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the undercut of X; a sense / degree / lack of undercut; amid / despite undercut Sentence frame: The debate turns on the undercut of ______. （空格填入與「廉價出售｜教學補註：the material removed by a cut made underneath」相關的對象。）
Example · TTS
Undercut a vein of ore. （廉價出售）
詳細 · 紅寶書
underhanded
神祕的；狡詐的
英文釋義：marked by deception; with hand brought forward and up from below shoulder level
相似詞：sneaky, underhand, underarm
相反詞：overhand
用法／搭配：核心義：marked by deception。中文錨點：神祕的；狡詐的。GRE tip: "underhanded" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an underhanded argument / tone / claim; strikingly / rather underhanded; underhanded enough to... Sentence frame: Her underhanded ______ surprised the reviewers. （名詞請選能被「神祕的；狡詐的」修飾者，如 approach / critique / silence。）
Example · TTS
The critic noted her underhanded approach to the evidence. （神祕的；狡詐的）
詳細 · 複習詞
underinitiated
無經驗的｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad...
英文釋義：a GRE-level vocabulary item meaning closely related to its core sense in academic English
用法／搭配：核心義：a GRE-level vocabulary item meaning closely related to its core sense in academic English。中文錨點：無經驗的｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad。GRE tip: "underinitiated" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the underinitiated of X; a sense / degree / lack of underinitiated; amid / despite underinitiated Sentence frame: The debate turns on the underinitiated of ______. （空格填入與「無經驗的｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad」相關的對象。）
Example · TTS
A clear sense of underinitiated is crucial to understanding the argument. （無經驗的）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
undermine
暗中破壞
英文釋義：暗中破壞
用法／搭配：GRE 提示：undermine 約「暗中破壞」——抓住語氣。
Example · TTS
GRE tip: undermine ~ 暗中破壞; keep the tone straight. （暗中破壞）
詳細 · 紅寶書
underplay
削弱重要性
英文釋義：act (a role) with great restraint; play a card lower than (a held high card)
相似詞：underact
相反詞：overact
用法／搭配：核心義：to act (a role) with great restraint。中文錨點：削弱重要性。GRE tip: treat "underplay" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to underplay sth; refuse / choose / begin to underplay; the underplayying of X Sentence frame: The committee decided to underplay ______ after ______. （造句時把空格填成符合「削弱重要性」的對象與原因。）
Example · TTS
In the end, they chose to underplay what they had once defended. （削弱重要性）
詳細 · 幽默聯想庫 P2-pending 補錄
underprivileged
弱勢的
英文釋義：弱勢的
用法／搭配：為弱勢作者減免費用。
Example · TTS
Waive fees for underprivileged authors. （弱勢的）
詳細 · 填空1300、複習詞
underrate
低估；看輕
英文釋義：make too low an estimate of
相似詞：underestimate
相反詞：overestimate
派生詞：underrating n.
用法／搭配：核心義：to make too low an estimate of。中文錨點：低估；看輕。GRE tip: treat "underrate" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to underrate sth; refuse / choose / begin to underrate; the underrating of X Sentence frame: The committee decided to underrate ______ after ______. （造句時把空格填成符合「低估；看輕」的對象與原因。）
Example · TTS
In the end, they chose to underrate what they had once defended. （低估；看輕）
詳細 · 填空1300、複習詞、紅寶書
underscore
強調｜教學補註：a line drawn underneath (especially under written matter)
英文釋義：a line drawn underneath (especially under written matter); give extra weight to (a communication)
相似詞：underline, emphasize, emphasise
相反詞：understate, downplay
用法／搭配：核心義：a line drawn underneath (especially under written matter)。中文錨點：強調｜教學補註：a line drawn underneath (especially under written matter)。GRE tip: "underscore" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the underscore of X; a sense / degree / lack of underscore; amid / despite underscore Sentence frame: The debate turns on the underscore of ______. （空格填入與「強調｜教學補註：a line drawn underneath (especially under written matter)」相關的對象。）
Example · TTS
A clear sense of underscore is crucial to understanding the argument. （強調）
詳細 · 紅寶書
understate
保守陳述｜教學補註：represent as less significant or important
英文釋義：represent as less significant or important
相似詞：minimize, minimise, downplay
相反詞：overstate
派生詞：understatement n.
用法／搭配：核心義：to represent as less significant or important。中文錨點：保守陳述｜教學補註：represent as less significant or important。GRE tip: treat "understate" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to understate sth; refuse / choose / begin to understate; the understating of X Sentence frame: The committee decided to understate ______ after ______. （造句時把空格填成符合「保守陳述｜教學補註：represent as less significant or important」的對象與原因。）
Example · TTS
After midnight, the noise began to understate. （保守陳述）
詳細 · 填空1300
understated
低調的；樸素的；輕描淡寫的
英文釋義：represent as less significant or important; exhibiting restrained good taste
相似詞：understate, minimize, minimise, downplay, unostentatious, unpretentious
相反詞：overstate
用法／搭配：核心義：to represent as less significant or important。中文錨點：低調的；樸素的；輕描淡寫的。GRE tip: treat "understated" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to understated sth; refuse / choose / begin to understated; the understatedding of X Sentence frame: The committee decided to understated ______ after ______. （造句時把空格填成符合「低調的；樸素的；輕描淡寫的」的對象與原因。）
Example · TTS
The room is pleasant and understated. （低調的；樸素的；輕描淡寫的）
詳細 · 救命800
undiscriminating
adj. 不加區別的
英文釋義：lacking of careful choice
相似詞：indiscriminate
相反詞：discriminating, discriminate
用法／搭配：a voracious and undiscriminating eater 胃口大且什麼都喫的人
Example · TTS
It was a voracious and undiscriminating eater. （不加區別的）
詳細 · 紅寶書
undulate
起伏；波動
英文釋義：stir up (water) so as to form ripples; occur in soft rounded shapes
相似詞：ripple, ruffle, riffle, cockle, roll, flap
相反詞：unwind
派生詞：undulation n.
用法／搭配：核心義：to stir up (water) so as to form ripples。中文錨點：起伏；波動。GRE tip: treat "undulate" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to undulate sth; refuse / choose / begin to undulate; the undulating of X Sentence frame: The committee decided to undulate ______ after ______. （造句時把空格填成符合「起伏；波動」的對象與原因。）
Example · TTS
The singer's voice undulated. （起伏；波動）
詳細 · 填空1300
unearned
不勞而獲的
英文釋義：not gained by merit or labor or service
相反詞：earned
用法／搭配：核心義：not gained by merit or labor or service。中文錨點：不勞而獲的。GRE tip: "unearned" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unearned argument / tone / claim; strikingly / rather unearned; unearned enough to... Sentence frame: Her unearned ______ surprised the reviewers. （名詞請選能被「不勞而獲的」修飾者，如 approach / critique / silence。）
Example · TTS
Accepted the unearned rewards that came his ways as well as the unearned criticism. （不勞而獲的）
詳細 · 複習詞、紅寶書
unearthly
神祕的；怪異的
英文釋義：concerned with or affecting the spirit or soul; suggesting the operation of supernatural influences; ; ; - John Galsworthy; ; - Henry Kingsley
相似詞：spiritual, eldritch, weird, uncanny
相反詞：ordinary, familiar
用法／搭配：核心義：concerned with or affecting the spirit or soul。中文錨點：神祕的；怪異的。GRE tip: "unearthly" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unearthly argument / tone / claim; strikingly / rather unearthly; unearthly enough to... Sentence frame: Her unearthly ______ surprised the reviewers. （名詞請選能被「神祕的；怪異的」修飾者，如 approach / critique / silence。）
Example · TTS
He could hear the unearthly scream of some curlew piercing the din. （神祕的；怪異的）
詳細 · 紅寶書
unemcumbered
不受阻礙的
英文釋義：a GRE-level vocabulary item meaning closely related to its core sense in academic English
用法／搭配：核心義：a GRE-level vocabulary item meaning closely related to its core sense in academic English。中文錨點：不受阻礙的。GRE tip: "unemcumbered" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the unemcumbered of X; a sense / degree / lack of unemcumbered; amid / despite unemcumbered Sentence frame: The debate turns on the unemcumbered of ______. （空格填入與「不受阻礙的」相關的對象。）
Example · TTS
A clear sense of unemcumbered is crucial to understanding the argument. （不受阻礙的）
詳細 · 紅寶書
unenlightened
未受教化的
英文釋義：not enlightened; ignorant; lacking information or instruction
相似詞：uninstructed, naive
相反詞：enlightened
用法／搭配：核心義：not enlightened。中文錨點：未受教化的。GRE tip: "unenlightened" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unenlightened argument / tone / claim; strikingly / rather unenlightened; unenlightened enough to... Sentence frame: Her unenlightened ______ surprised the reviewers. （名詞請選能被「未受教化的」修飾者，如 approach / critique / silence。）
Example · TTS
The devices by which unenlightened men preserved the unjust social order. （未受教化的）
詳細 · 紅寶書
unequivocal
清晰的；明確的
英文釋義：admitting of no doubt or misunderstanding; having only one meaning or interpretation and leading to only one conclusion; clearly defined or formulated; - R.B.Taney
相似詞：univocal, unambiguous, definitive
相反詞：ambiguous, vague, equivocal
派生詞：unequivocalness n.
用法／搭配：核心義：admitting of no doubt or misunderstanding。中文錨點：清晰的；明確的。GRE tip: "unequivocal" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unequivocal argument / tone / claim; strikingly / rather unequivocal; unequivocal enough to... Sentence frame: Her unequivocal ______ surprised the reviewers. （名詞請選能被「清晰的；明確的」修飾者，如 approach / critique / silence。）
Example · TTS
The plain and unequivocal language of the laws. （清晰的；明確的）
詳細 · 紅寶書
unexceptionable
無懈可擊的
英文釋義：completely acceptable; not open to exception or reproach
相似詞：unimpeachable
用法／搭配：核心義：completely acceptable。中文錨點：無懈可擊的。GRE tip: "unexceptionable" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unexceptionable argument / tone / claim; strikingly / rather unexceptionable; unexceptionable enough to... Sentence frame: Her unexceptionable ______ surprised the reviewers. （名詞請選能被「無懈可擊的」修飾者，如 approach / critique / silence。）
Example · TTS
A judge's ethics should be unexceptionable. （無懈可擊的）
詳細 · 複習詞、紅寶書
unfailing
無盡的｜教學補註：not liable to failure
英文釋義：not liable to failure; always able to supply more
相似詞：foolproof, unflagging
用法／搭配：核心義：not liable to failure。中文錨點：無盡的｜教學補註：not liable to failure。GRE tip: "unfailing" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unfailing argument / tone / claim; strikingly / rather unfailing; unfailing enough to... Sentence frame: Her unfailing ______ surprised the reviewers. （名詞請選能被「無盡的｜教學補註：not liable to failure」修飾者，如 approach / critique / silence。）
Example · TTS
An unfailing source of good stories. （無盡的）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
unfavorable
不利的
英文釋義：不利的
用法／搭配：不利虛無仍要發表。
Example · TTS
Unfavorable nulls still get published. （不利的）
詳細 · 紅寶書
unfettered
自由的｜教學補註：not bound by shackles and chains
英文釋義：not bound by shackles and chains
相似詞：unchained, unshackled, untied
相反詞：chain, laced, tie, tied
用法／搭配：核心義：not bound by shackles and chains。中文錨點：自由的｜教學補註：not bound by shackles and chains。GRE tip: "unfettered" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unfettered argument / tone / claim; strikingly / rather unfettered; unfettered enough to... Sentence frame: Her unfettered ______ surprised the reviewers. （名詞請選能被「自由的｜教學補註：not bound by shackles and chains」修飾者，如 approach / critique / silence。）
Example · TTS
The critic noted her unfettered approach to the evidence. （自由的）
詳細 · 幽默聯想庫 S3a 補錄
unfinished
未完成的
英文釋義：未完成的
用法／搭配：未完成穩健＝未完成科學。
Example · TTS
Unfinished robustness is unfinished science. （未完成的）
詳細 · 填空1300、重要詞
unflagging
不屈不撓的；
英文釋義：showing sustained enthusiastic action with unflagging vitality; unceasing
相似詞：indefatigable, tireless, unwearying, unfailing
用法／搭配：核心義：showing sustained enthusiastic action with unflagging vitality。中文錨點：不屈不撓的。GRE tip: "unflagging" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unflagging argument / tone / claim; strikingly / rather unflagging; unflagging enough to... Sentence frame: Her unflagging ______ surprised the reviewers. （名詞請選能被「不屈不撓的」修飾者，如 approach / critique / silence。）
Example · TTS
Unflagging pursuit of excellence. （不屈不撓的）
詳細 · GRE3000、複習詞
unflappable
鎮定的｜教學補註：not easily perturbed or excited or upset
英文釋義：not easily perturbed or excited or upset; marked by extreme calm and composure
相似詞：imperturbable
相反詞：agitated, nervous
用法／搭配：核心義：not easily perturbed or excited or upset。中文錨點：鎮定的｜教學補註：not easily perturbed or excited or upset。GRE tip: "unflappable" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unflappable argument / tone / claim; strikingly / rather unflappable; unflappable enough to... Sentence frame: Her unflappable ______ surprised the reviewers. （名詞請選能被「鎮定的｜教學補註：not easily perturbed or excited or upset」修飾者，如 approach / critique / silence。）
Example · TTS
Unflappable in a crisis. （鎮定的）
詳細 · 救命800
unflinching
adj. 不畏縮的｜教學補註：strong and determined
英文釋義：strong and determined
相似詞：steadfast
用法／搭配：unflinching determination 堅定不移的決心
Example · TTS
Consider this case: unflinching determination. （不畏縮的）
詳細 · 紅寶書
ungainly
笨拙的｜教學補註：lacking grace in movement or posture
英文釋義：lacking grace in movement or posture; difficult to handle or manage especially because of shape
相似詞：gawky, clumsy, clunky, unwieldy, awkward, bunglesome
相反詞：wieldy, graceful
派生詞：ungainliness n.
用法／搭配：核心義：lacking grace in movement or posture。中文錨點：笨拙的｜教學補註：lacking grace in movement or posture。GRE tip: "ungainly" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an ungainly argument / tone / claim; strikingly / rather ungainly; ungainly enough to... Sentence frame: Her ungainly ______ surprised the reviewers. （名詞請選能被「笨拙的｜教學補註：lacking grace in movement or posture」修飾者，如 approach / critique / silence。）
Example · TTS
The cello, a rather ungainly instrument for a girl. （笨拙的）
詳細 · 填空1300
ungracious
沒禮貌的｜教學補註：lacking charm and good taste
英文釋義：lacking charm and good taste; lacking social graces
相似詞：discourteous
相反詞：gracious
派生詞：ungraciousness n.
用法／搭配：核心義：lacking charm and good taste。中文錨點：沒禮貌的｜教學補註：lacking charm and good taste。GRE tip: "ungracious" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an ungracious argument / tone / claim; strikingly / rather ungracious; ungracious enough to... Sentence frame: Her ungracious ______ surprised the reviewers. （名詞請選能被「沒禮貌的｜教學補註：lacking charm and good taste」修飾者，如 approach / critique / silence。）
Example · TTS
This curt summary is not meant to be ungracious. （沒禮貌的）
詳細 · 複習詞
ungrudging
慷慨的｜教學補註：without envy or reluctance
英文釋義：without envy or reluctance
用法／搭配：核心義：without envy or reluctance。中文錨點：慷慨的｜教學補註：without envy or reluctance。GRE tip: "ungrudging" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an ungrudging argument / tone / claim; strikingly / rather ungrudging; ungrudging enough to... Sentence frame: Her ungrudging ______ surprised the reviewers. （名詞請選能被「慷慨的｜教學補註：without envy or reluctance」修飾者，如 approach / critique / silence。）
Example · TTS
Ungrudging admiration. （慷慨的）
詳細 · 紅寶書
unheralded
未預先說明的
英文釋義：without warning or announcement; ; - M.A.D.Howe
相似詞：unannounced, unpredicted
用法／搭配：核心義：without warning or announcement。中文錨點：未預先說明的。GRE tip: "unheralded" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unheralded argument / tone / claim; strikingly / rather unheralded; unheralded enough to... Sentence frame: Her unheralded ______ surprised the reviewers. （名詞請選能被「未預先說明的」修飾者，如 approach / critique / silence。）
Example · TTS
A totally unheralded telegram that his daughter...died last night. （未預先說明的）
詳細 · 救命800、重要詞
unidimensional
adj. 膚淺的｜教學補註：simple and uninteresting
英文釋義：simple and uninteresting
相似詞：superficial, shallow
相反詞：multidimensional, profound, deep
用法／搭配：unidimensional creations 膚淺的創作
Example · TTS
A prose statement of fact is unidimensional, its value being measured wholly in terms of its truth. （膚淺的）
詳細 · 救命800、紅寶書
unimpeachable
adj. 無懈可擊的
英文釋義：beyond doubt
相似詞：unassailable, unexceptionable
相反詞：vulnerable, weak
用法／搭配：unimpeachable evidence 確鑿的證據
Example · TTS
An unimpeachable reputation. （無懈可擊的）
詳細 · 紅寶書
uninitiated
沒有經驗的
英文釋義：not initiated; deficient in relevant experience
相似詞：uninitiate, naive
相反詞：initiate, sophisticated, worldly
用法／搭配：核心義：not initiated。中文錨點：沒有經驗的。GRE tip: "uninitiated" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an uninitiated argument / tone / claim; strikingly / rather uninitiated; uninitiated enough to... Sentence frame: Her uninitiated ______ surprised the reviewers. （名詞請選能被「沒有經驗的」修飾者，如 approach / critique / silence。）
Example · TTS
It seemed a bizarre ceremony to uninitiated western eyes. （沒有經驗的）
詳細 · 幽默聯想庫 P2-pending 補錄
unison
齊聲；一致
英文釋義：齊聲；一致
用法／搭配：跨站點齊聲鎖定終點。
Example · TTS
Lock endpoints in unison across sites. （齊聲；一致）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
universal
普遍的
英文釋義：普遍的
用法／搭配：普遍主張需要普遍檢查。
Example · TTS
Universal claims need universal checks. （普遍的）
詳細 · 救命800
univocal
adj. 含義明確的
英文釋義：clearly expressed
相似詞：clear-cut, explicit
相反詞：equivocal, implicit, vague
用法／搭配：a univocal message of support 明確表示支持
Example · TTS
An unequivocal (or univocal) statement. （含義明確的）
詳細 · 幽默聯想庫 S3a 補錄
unjust
不公正的
英文釋義：不公正的
用法／搭配：不公正作者規範浪費人才。
Example · TTS
Unjust authorship norms waste talent. （不公正的）
詳細 · 紅寶書
unjustifiable
不合理的；無法辯護的
英文釋義：incapable of being justified or explained
相似詞：indefensible, insupportable, unwarrantable, unwarranted
相反詞：justified, warranted
用法／搭配：核心義：incapable of being justified or explained。中文錨點：不合理的；無法辯護的。GRE tip: "unjustifiable" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unjustifiable argument / tone / claim; strikingly / rather unjustifiable; unjustifiable enough to... Sentence frame: Her unjustifiable ______ surprised the reviewers. （名詞請選能被「不合理的；無法辯護的」修飾者，如 approach / critique / silence。）
Example · TTS
The critic noted her unjustifiable approach to the evidence. （不合理的；無法辯護的）
詳細 · 複習詞、救命800、紅寶書
unkempt
adj. 凌亂的，無序的
英文釋義：lacking in order or cleanness
相似詞：slovenly, chaotic, untidy, topsy-turvy
相反詞：tidy
派生詞：unkemptness n.
用法／搭配：unkempt hotel rooms 凌亂的酒店房間
Example · TTS
Native vistas and unkempt rambling paths. （凌亂的，無序的）
詳細 · 紅寶書
unleash
泄露；發泄
英文釋義：release or vent; release from a leash
相似詞：loose
相反詞：affixed, compact, confine, stiffen, tight
用法／搭配：核心義：to release or vent。中文錨點：泄露；發泄。GRE tip: treat "unleash" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to unleash sth; refuse / choose / begin to unleash; the unleashing of X Sentence frame: The committee decided to unleash ______ after ______. （造句時把空格填成符合「泄露；發泄」的對象與原因。）
Example · TTS
Unleash the dogs in the park. （泄露；發泄）
詳細 · 幽默聯想庫 P2-pending 補錄
unliberated
未解放的
英文釋義：未解放的
用法／搭配：未解放資料集藏在私人硬碟。
Example · TTS
Unliberated datasets hide in private drives. （未解放的）
詳細 · 紅寶書
unobtrusive
不突出的｜教學補註：not obtrusive or undesirably noticeable
英文釋義：not obtrusive or undesirably noticeable
相似詞：unnoticeable
相反詞：obtrusive
派生詞：unobtrusiveness n.
用法／搭配：核心義：not obtrusive or undesirably noticeable。中文錨點：不突出的｜教學補註：not obtrusive or undesirably noticeable。GRE tip: "unobtrusive" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unobtrusive argument / tone / claim; strikingly / rather unobtrusive; unobtrusive enough to... Sentence frame: Her unobtrusive ______ surprised the reviewers. （名詞請選能被「不突出的｜教學補註：not obtrusive or undesirably noticeable」修飾者，如 approach / critique / silence。）
Example · TTS
A quiet, unobtrusive life of self-denial. （不突出的）
詳細 · 幽默聯想庫 S3a 補錄
unprecedented
前所未有的
英文釋義：前所未有的
用法／搭配：前所未有的規模需要新防護。
Example · TTS
Unprecedented scale requires new safeguards. （前所未有的）
詳細 · 紅寶書
unpremeditated
無意的；偶然的
英文釋義：not prepared or planned in advance; not premeditated
相反詞：premeditated
用法／搭配：核心義：not prepared or planned in advance。中文錨點：無意的；偶然的。GRE tip: "unpremeditated" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unpremeditated argument / tone / claim; strikingly / rather unpremeditated; unpremeditated enough to... Sentence frame: Her unpremeditated ______ surprised the reviewers. （名詞請選能被「無意的；偶然的」修飾者，如 approach / critique / silence。）
Example · TTS
Asked an unpremeditated question. （無意的；偶然的）
詳細 · 紅寶書
unpretentious
謙遜的｜教學補註：lacking pretension or affectation
英文釋義：lacking pretension or affectation; not ostentatious
相似詞：unostentatious, unpretending, understated
相反詞：ostentatious, pretentious
派生詞：unpretentiousness n.
用法／搭配：核心義：lacking pretension or affectation。中文錨點：謙遜的｜教學補註：lacking pretension or affectation。GRE tip: "unpretentious" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unpretentious argument / tone / claim; strikingly / rather unpretentious; unpretentious enough to... Sentence frame: Her unpretentious ______ surprised the reviewers. （名詞請選能被「謙遜的｜教學補註：lacking pretension or affectation」修飾者，如 approach / critique / silence。）
Example · TTS
Her quiet unpretentious demeanor. （謙遜的）
詳細 · 救命800
unqualified
adj. 完全的，徹底的
英文釋義：complete and total
相似詞：unalloyed, absolute
相反詞：competent, qualified, mixed, impure, relative
用法／搭配：unqualified support 全力支持
Example · TTS
A wife is usually considered unqualified to testify against her husband. （完全的，徹底的）
詳細 · 複習詞
unregenerate
不悔改的｜教學補註：tenaciously unwilling or marked by tenacious unwillingness to yield
英文釋義：tenaciously unwilling or marked by tenacious unwillingness to yield; not reformed morally or spiritually
相似詞：stubborn, obstinate, unregenerated, unreformable
相反詞：docile, regenerate
用法／搭配：核心義：tenaciously unwilling or marked by tenacious unwillingness to yield。中文錨點：不悔改的｜教學補註：tenaciously unwilling or marked by tenacious unwillingness to yield。GRE tip: "unregenerate" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unregenerate argument / tone / claim; strikingly / rather unregenerate; unregenerate enough to... Sentence frame: Her unregenerate ______ surprised the reviewers. （名詞請選能被「不悔改的｜教學補註：tenaciously unwilling or marked by tenacious unwillingness to yield」修飾者，如 approach / critique / silence。）
Example · TTS
Unregenerate human nature. （不悔改的）
詳細 · 填空1300
unrelenting
不屈不撓的；冷酷的
英文釋義：not to be placated or appeased or moved by entreaty; harsh
相似詞：grim, inexorable, relentless, stern, unappeasable, unforgiving
相反詞：flexible, yielding, forgiving
用法／搭配：核心義：not to be placated or appeased or moved by entreaty。中文錨點：不屈不撓的；冷酷的。GRE tip: "unrelenting" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unrelenting argument / tone / claim; strikingly / rather unrelenting; unrelenting enough to... Sentence frame: Her unrelenting ______ surprised the reviewers. （名詞請選能被「不屈不撓的；冷酷的」修飾者，如 approach / critique / silence。）
Example · TTS
The critic noted her unrelenting approach to the evidence. （不屈不撓的；冷酷的）
詳細 · 複習詞、紅寶書
unremiting
不間斷的｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad...
英文釋義：a GRE-level vocabulary item meaning closely related to its core sense in academic English
用法／搭配：核心義：a GRE-level vocabulary item meaning closely related to its core sense in academic English。中文錨點：不間斷的｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad。GRE tip: "unremiting" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the unremiting of X; a sense / degree / lack of unremiting; amid / despite unremiting Sentence frame: The debate turns on the unremiting of ______. （空格填入與「不間斷的｜教學補註：a GRE-level vocabulary item meaning closely related to its core sense in acad」相關的對象。）
Example · TTS
A clear sense of unremiting is crucial to understanding the argument. （不間斷的）
詳細 · 救命800
unremitting
adj. 連續不斷的
英文釋義：going on and on without any interruptions
相似詞：ceaseless, continuous, relentless
相反詞：discontinuous
用法／搭配：unremitting rain lasted for six days 連續下了六天的雨
Example · TTS
Unremitting demands of hunger. （連續不斷的）
詳細 · 複習詞
unrepentant
不悔改的｜教學補註：not penitent or remorseful
英文釋義：not penitent or remorseful; stubbornly persistent in wrongdoing
相似詞：impenitent, unremorseful, cussed, obdurate, obstinate
相反詞：penitent, repentant
用法／搭配：核心義：not penitent or remorseful。中文錨點：不悔改的｜教學補註：not penitent or remorseful。GRE tip: "unrepentant" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unrepentant argument / tone / claim; strikingly / rather unrepentant; unrepentant enough to... Sentence frame: Her unrepentant ______ surprised the reviewers. （名詞請選能被「不悔改的｜教學補註：not penitent or remorseful」修飾者，如 approach / critique / silence。）
Example · TTS
The critic noted her unrepentant approach to the evidence. （不悔改的）
詳細 · 救命800、重要詞
unruly
adj. 難駕馭的，不聽話的
英文釋義：difficult or impossible to discipline, control, or rule
相似詞：indocile, intractable, recalcitrant
相反詞：manageable, tractable, compliant, obedient
派生詞：unruliness n.
用法／搭配：an unruly child 一個不聽話的孩子
Example · TTS
The little boy's parents think he is spirited, but his teacher finds him unruly. （難駕馭的，不聽話的）
詳細 · 複習詞、紅寶書
unscathed
未受損傷的
英文釋義：not injured
相似詞：unharmed, unhurt, whole
相反詞：fractional, half, partly
用法／搭配：核心義：not injured。中文錨點：未受損傷的。GRE tip: "unscathed" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unscathed argument / tone / claim; strikingly / rather unscathed; unscathed enough to... Sentence frame: Her unscathed ______ surprised the reviewers. （名詞請選能被「未受損傷的」修飾者，如 approach / critique / silence。）
Example · TTS
The critic noted her unscathed approach to the evidence. （未受損傷的）
詳細 · 複習詞、紅寶書
unscrupulous
肆無忌憚的
英文釋義：without scruples or principles
相反詞：scrupulous
派生詞：unscrupulousness n.
用法／搭配：核心義：without scruples or principles。中文錨點：肆無忌憚的。GRE tip: "unscrupulous" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unscrupulous argument / tone / claim; strikingly / rather unscrupulous; unscrupulous enough to... Sentence frame: Her unscrupulous ______ surprised the reviewers. （名詞請選能被「肆無忌憚的」修飾者，如 approach / critique / silence。）
Example · TTS
Unscrupulous politicos who would be happy to sell...their country in order to gain power. （肆無忌憚的）
詳細 · 紅寶書
unseemly
不合適的｜教學補註：not in keeping with accepted standards of what is right or proper in polite s...
英文釋義：not in keeping with accepted standards of what is right or proper in polite society
相似詞：indecent, indecorous, unbecoming, uncomely, untoward
相反詞：decent, proper, decorous
派生詞：unseemliness n.
用法／搭配：核心義：not in keeping with accepted standards of what is right or proper in polite society。中文錨點：不合適的｜教學補註：not in keeping with accepted standards of what is right or proper in polite s。GRE tip: "unseemly" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unseemly argument / tone / claim; strikingly / rather unseemly; unseemly enough to... Sentence frame: Her unseemly ______ surprised the reviewers. （名詞請選能被「不合適的｜教學補註：not in keeping with accepted standards of what is right or proper in polite s」修飾者，如 approach / critique / silence。）
Example · TTS
Unseemly to use profanity. （不合適的）
詳細 · 紅寶書
unsettle
動搖；不安
英文釋義：disturb the composure of
相似詞：faze, unnerve, enervate
相反詞：invigorate, strengthen
用法／搭配：核心義：to disturb the composure of。中文錨點：動搖；不安。GRE tip: treat "unsettle" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to unsettle sth; refuse / choose / begin to unsettle; the unsettling of X Sentence frame: The committee decided to unsettle ______ after ______. （造句時把空格填成符合「動搖；不安」的對象與原因。）
Example · TTS
In the end, they chose to unsettle what they had once defended. （動搖；不安）
詳細 · 紅寶書
unsound
不安全的；不周全的
英文釋義：not in good condition; damaged or decayed; not sound financially
相似詞：fallacious, unstable, bad, unfit
相反詞：sound
派生詞：unsoundness n.
用法／搭配：核心義：not in good condition。中文錨點：不安全的；不周全的。GRE tip: "unsound" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unsound argument / tone / claim; strikingly / rather unsound; unsound enough to... Sentence frame: Her unsound ______ surprised the reviewers. （名詞請選能被「不安全的；不周全的」修飾者，如 approach / critique / silence。）
Example · TTS
Unsound banking practices. （不安全的；不周全的）
詳細 · 紅寶書
unspotted
無瑕疵的｜教學補註：without soil or spot or stain
英文釋義：without soil or spot or stain
相似詞：unsoiled, unstained
相反詞：stained
用法／搭配：核心義：without soil or spot or stain。中文錨點：無瑕疵的｜教學補註：without soil or spot or stain。GRE tip: "unspotted" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unspotted argument / tone / claim; strikingly / rather unspotted; unspotted enough to... Sentence frame: Her unspotted ______ surprised the reviewers. （名詞請選能被「無瑕疵的｜教學補註：without soil or spot or stain」修飾者，如 approach / critique / silence。）
Example · TTS
The critic noted her unspotted approach to the evidence. （無瑕疵的）
詳細 · 複習詞、紅寶書
unstinting
慷慨的｜教學補註：very generous
英文釋義：very generous
相似詞：lavish, munificent, overgenerous, too-generous, unsparing, unstinted
相反詞：sparing, meager, stingy, miserly
用法／搭配：核心義：very generous。中文錨點：慷慨的｜教學補註：very generous。GRE tip: "unstinting" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unstinting argument / tone / claim; strikingly / rather unstinting; unstinting enough to... Sentence frame: Her unstinting ______ surprised the reviewers. （名詞請選能被「慷慨的｜教學補註：very generous」修飾者，如 approach / critique / silence。）
Example · TTS
Called for unstinting aid to Britain. （慷慨的）
詳細 · 幽默聯想庫 P3-pending-b03 補錄
unsullied
未玷污的
英文釋義：未玷污的
用法／搭配：考意錨點：未玷污的
Example · TTS
On the exam, unsullied most nearly means a sense of "未玷污的". （未玷污的）
詳細 · 紅寶書
untamed
未被馴服的
英文釋義：in a natural state; not tamed or domesticated or cultivated
相似詞：wild
相反詞：tame
用法／搭配：核心義：in a natural state。中文錨點：未被馴服的。GRE tip: "untamed" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an untamed argument / tone / claim; strikingly / rather untamed; untamed enough to... Sentence frame: Her untamed ______ surprised the reviewers. （名詞請選能被「未被馴服的」修飾者，如 approach / critique / silence。）
Example · TTS
The critic noted her untamed approach to the evidence. （未被馴服的）
詳細 · 救命800、紅寶書
untenable
adj. 站不住腳的
英文釋義：not able to be defended
相似詞：baseless, groundless, unwarranted
相反詞：justified, warranted
用法／搭配：untenable evidence 站不住腳的證據
Example · TTS
Consider this case: untenable evidence. （站不住腳的）
詳細 · 幽默聯想庫 P4-pending-b02 補錄
untiring
不疲倦的
英文釋義：不疲倦的
用法／搭配：考意錨點：不疲倦的
Example · TTS
On the exam, untiring most nearly means a sense of "不疲倦的". （不疲倦的）
詳細 · 紅寶書
untold
無數的｜教學補註：of an incalculable amount
英文釋義：of an incalculable amount
用法／搭配：核心義：of an incalculable amount。中文錨點：無數的｜教學補註：of an incalculable amount。GRE tip: "untold" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an untold argument / tone / claim; strikingly / rather untold; untold enough to... Sentence frame: Her untold ______ surprised the reviewers. （名詞請選能被「無數的｜教學補註：of an incalculable amount」修飾者，如 approach / critique / silence。）
Example · TTS
Untold suffering. （無數的）
詳細 · 救命800、重要詞
untoward
adj. 倒黴的，不吉利的
英文釋義：not favorable, unpropitious
相似詞：unpropitious, misfortunate, unfortunate
相反詞：propitious, auspicious, fortunate
形近詞：untoward 不合適的，不幸的；不得體的=indecent，糟糕的 ｜ wayward 任性的倔強的 不規則的
用法／搭配：an untoward incident 不幸的事故
Example · TTS
Made a place for themselves under the most untoward conditions. （倒黴的，不吉利的）
詳細 · 紅寶書
unwarranted
沒有根據的
英文釋義：incapable of being justified or explained; without a basis in reason or fact
相似詞：indefensible, insupportable, unjustifiable, unwarrantable, baseless, groundless
相反詞：justified, warranted
用法／搭配：核心義：incapable of being justified or explained。中文錨點：沒有根據的。GRE tip: "unwarranted" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unwarranted argument / tone / claim; strikingly / rather unwarranted; unwarranted enough to... Sentence frame: Her unwarranted ______ surprised the reviewers. （名詞請選能被「沒有根據的」修飾者，如 approach / critique / silence。）
Example · TTS
Unwarranted limitations of personal freedom. （沒有根據的）
詳細 · 紅寶書
unwieldy
笨重的｜教學補註：difficult to use or handle or manage because of size or weight or shape
英文釋義：difficult to use or handle or manage because of size or weight or shape; difficult to work or manipulate
相似詞：unmanageable, gawky, clumsy, clunky, ungainly
相反詞：wieldy
派生詞：unwieldiness n.
用法／搭配：核心義：difficult to use or handle or manage because of size or weight or shape。中文錨點：笨重的｜教學補註：difficult to use or handle or manage because of size or weight or shape。GRE tip: "unwieldy" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unwieldy argument / tone / claim; strikingly / rather unwieldy; unwieldy enough to... Sentence frame: Her unwieldy ______ surprised the reviewers. （名詞請選能被「笨重的｜教學補註：difficult to use or handle or manage because of size or weight or shape」修飾者，如 approach / critique / silence。）
Example · TTS
We set about towing the unwieldy structure into the shelter. （笨重的）
詳細 · 複習詞、救命800、紅寶書
unwitting
adj. 不知道的｜教學補註：without realizing
英文釋義：without realizing
相似詞：unaware
相反詞：witting, aware
用法／搭配：an unwitting mistake 無意的錯誤
Example · TTS
An unwitting mistake may be overlooked. （不知道的）
詳細 · 複習詞、紅寶書
unwonted
不習慣的｜教學補註：out of the ordinary
英文釋義：out of the ordinary
用法／搭配：核心義：out of the ordinary。中文錨點：不習慣的｜教學補註：out of the ordinary。GRE tip: "unwonted" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unwonted argument / tone / claim; strikingly / rather unwonted; unwonted enough to... Sentence frame: Her unwonted ______ surprised the reviewers. （名詞請選能被「不習慣的｜教學補註：out of the ordinary」修飾者，如 approach / critique / silence。）
Example · TTS
An unwonted softness in her face. （不習慣的）
詳細 · 複習詞、紅寶書
unyielding
頑固的；不屈服的
英文釋義：stubbornly unyielding; ; ; ; - T.S.Eliot; resistant to physical force or pressure
相似詞：dogged, dour, persistent, pertinacious, tenacious
相反詞：caducous, yielding, irresolute, unretentive
派生詞：unyieldingness n.
用法／搭配：核心義：stubbornly unyielding。中文錨點：頑固的；不屈服的。GRE tip: "unyielding" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an unyielding argument / tone / claim; strikingly / rather unyielding; unyielding enough to... Sentence frame: Her unyielding ______ surprised the reviewers. （名詞請選能被「頑固的；不屈服的」修飾者，如 approach / critique / silence。）
Example · TTS
An unyielding head support. （頑固的；不屈服的）
詳細 · GRE3000、複習詞、紅寶書
upbraid
責備｜教學補註：express criticism towards
英文釋義：express criticism towards
相似詞：reproach
相反詞：praise, commend
派生詞：upbraider n., upbraiding n.
用法／搭配：核心義：to express criticism towards。中文錨點：責備｜教學補註：express criticism towards。GRE tip: treat "upbraid" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to upbraid sth; refuse / choose / begin to upbraid; the upbraiding of X Sentence frame: The committee decided to upbraid ______ after ______. （造句時把空格填成符合「責備｜教學補註：express criticism towards」的對象與原因。）
Example · TTS
In the end, they chose to upbraid what they had once defended. （責備）
詳細 · 幽默聯想庫 P3-pending-b02 補錄
upcoming
即將到來
英文釋義：即將到來
用法／搭配：考意錨點：即將到來
Example · TTS
On the exam, upcoming most nearly means a sense of "即將到來". （即將到來）
詳細 · 填空1300
upend
顛倒｜教學補註：become turned or set on end
英文釋義：become turned or set on end; set, turn, or stand on end
派生詞：upending n.
形近詞：upend v.推翻 ｜ upshot n.結果
用法／搭配：核心義：to become turned or set on end。中文錨點：顛倒｜教學補註：become turned or set on end。GRE tip: treat "upend" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to upend sth; refuse / choose / begin to upend; the upending of X Sentence frame: The committee decided to upend ______ after ______. （造句時把空格填成符合「顛倒｜教學補註：become turned or set on end」的對象與原因。）
Example · TTS
Upend the box and empty the contents. （顛倒）
詳細 · 紅寶書
upfront
坦率的｜教學補註：frank and honest
英文釋義：frank and honest
用法／搭配：核心義：frank and honest。中文錨點：坦率的｜教學補註：frank and honest。GRE tip: "upfront" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an upfront argument / tone / claim; strikingly / rather upfront; upfront enough to... Sentence frame: Her upfront ______ surprised the reviewers. （名詞請選能被「坦率的｜教學補註：frank and honest」修飾者，如 approach / critique / silence。）
Example · TTS
He was upfront about his intentions. （坦率的）
詳細 · 救命800
upheaval
n. （引起問題的）劇變
英文釋義：a big change that cause problem
相似詞：convulsion, maelstrom
派生詞：upheave v.
用法／搭配：political upheaval 政治劇變
Example · TTS
In academic English, writers may refer to the political upheaval. （（引起問題的）劇變）
詳細 · 複習詞、紅寶書
uphold
支持｜教學補註：keep or maintain in unaltered condition
英文釋義：keep or maintain in unaltered condition; cause to remain or last; stand up for; stick up for; of causes, principles, or ideals
相似詞：continue, preserve, maintain
相反詞：discontinue
派生詞：upholder n.
用法／搭配：核心義：to keep or maintain in unaltered condition。中文錨點：支持｜教學補註：keep or maintain in unaltered condition。GRE tip: treat "uphold" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to uphold sth; refuse / choose / begin to uphold; the upholding of X Sentence frame: The committee decided to uphold ______ after ______. （造句時把空格填成符合「支持｜教學補註：keep or maintain in unaltered condition」的對象與原因。）
Example · TTS
In the end, they chose to uphold what they had once defended. （支持）
詳細 · 幽默聯想庫 P2-pending 補錄
upright
正直的；直立的
英文釋義：正直的；直立的
用法／搭配：誘因彎曲時仍站直。
Example · TTS
Stay upright when incentives bend. （正直的；直立的）
詳細 · 複習詞、紅寶書
uproar
喧鬧｜教學補註：a state of commotion and noise and confusion
英文釋義：a state of commotion and noise and confusion; loud confused noise from many sources
相似詞：tumult, tumultuousness, garboil, hubbub, brouhaha, katzenjammer
派生詞：uproarious adj.
用法／搭配：核心義：a state of commotion and noise and confusion。中文錨點：喧鬧｜教學補註：a state of commotion and noise and confusion。GRE tip: "uproar" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the uproar of X; a sense / degree / lack of uproar; amid / despite uproar Sentence frame: The debate turns on the uproar of ______. （空格填入與「喧鬧｜教學補註：a state of commotion and noise and confusion」相關的對象。）
Example · TTS
A clear sense of uproar is crucial to understanding the argument. （喧鬧）
詳細 · 紅寶書
uproarious
喧鬧的｜教學補註：uncontrollably noisy
英文釋義：uncontrollably noisy; marked by or causing boisterous merriment or convulsive laughter
相似詞：rackety, rip-roaring, hilarious, screaming
派生詞：uproar n.
用法／搭配：核心義：uncontrollably noisy。中文錨點：喧鬧的｜教學補註：uncontrollably noisy。GRE tip: "uproarious" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an uproarious argument / tone / claim; strikingly / rather uproarious; uproarious enough to... Sentence frame: Her uproarious ______ surprised the reviewers. （名詞請選能被「喧鬧的｜教學補註：uncontrollably noisy」修飾者，如 approach / critique / silence。）
Example · TTS
Uproarious stories. （喧鬧的）
詳細 · 救命800、重要詞
upshot
n. 最後結果｜教學補註：the final result
英文釋義：the final result
相似詞：finale, corollary, outgrowth
形近詞：upend v.推翻 ｜ upshot n.結果
用法／搭配：the upshot of the court’s ruling 法庭的最後宣判結果
Example · TTS
The debate focused on the upshot of the court’s ruling. （最後結果）
詳細 · 複習詞、紅寶書
upstage
高傲的；自負的
英文釋義：the rear part of the stage; treat snobbishly, put in one's place
相似詞：aloof, distant
相反詞：downstage
派生詞：upstager n.
用法／搭配：核心義：the rear part of the stage。中文錨點：高傲的；自負的。GRE tip: "upstage" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the upstage of X; a sense / degree / lack of upstage; amid / despite upstage Sentence frame: The debate turns on the upstage of ______. （空格填入與「高傲的；自負的」相關的對象。）
Example · TTS
She crossed to the upstage chair forcing the lead to turn his back to the audience. （高傲的；自負的）
詳細 · 紅寶書
upstart
暴發戶｜教學補註：an arrogant or presumptuous person
英文釋義：an arrogant or presumptuous person; a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class
相似詞：parvenu, nouveau-riche, arriviste, kip, parvenue
相反詞：wake
用法／搭配：核心義：an arrogant or presumptuous person。中文錨點：暴發戶｜教學補註：an arrogant or presumptuous person。GRE tip: "upstart" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the upstart of X; a sense / degree / lack of upstart; amid / despite upstart Sentence frame: The debate turns on the upstart of ______. （空格填入與「暴發戶｜教學補註：an arrogant or presumptuous person」相關的對象。）
Example · TTS
No one wanted to be labeled a upstart in that debate. （暴發戶）
詳細 · 複習詞、救命800、紅寶書
upsurge
n. 激增｜教學補註：a rapid or sudden increase
英文釋義：a rapid or sudden increase
相似詞：boom, spike
用法／搭配：an upsurge in violent crime 暴力犯罪的激增
Example · TTS
An upsurge in violent crime. （激增）
詳細 · 紅寶書
upswing
上升；增加
英文釋義：a GRE-level vocabulary item meaning closely related to its core sense in academic English
用法／搭配：核心義：a GRE-level vocabulary item meaning closely related to its core sense in academic English。中文錨點：上升；增加。GRE tip: "upswing" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the upswing of X; a sense / degree / lack of upswing; amid / despite upswing Sentence frame: The debate turns on the upswing of ______. （空格填入與「上升；增加」相關的對象。）
Example · TTS
A clear sense of upswing is crucial to understanding the argument. （上升；增加）
詳細 · 幽默聯想庫 P2-pending 補錄
urban
都市的
英文釋義：都市的
用法／搭配：都市多站研究需要站點效應。
Example · TTS
Urban multi-site studies need site effects. （都市的）
詳細 · 紅寶書
urbane
彬彬有禮的
英文釋義：showing a high degree of refinement and the assurance that comes from wide social experience
相似詞：polished, refined, svelte
相反詞：rustic, uncouth
派生詞：urbanity n.
用法／搭配：核心義：showing a high degree of refinement and the assurance that comes from wide social experience。中文錨點：彬彬有禮的。GRE tip: "urbane" is typically an evaluative adjective—it colors a noun (argument, tone, evidence, claim). 搭配：an urbane argument / tone / claim; strikingly / rather urbane; urbane enough to... Sentence frame: Her urbane ______ surprised the reviewers. （名詞請選能被「彬彬有禮的」修飾者，如 approach / critique / silence。）
Example · TTS
Maintained an urbane tone in his letters. （彬彬有禮的）
詳細 · 幽默聯想庫 P2-pending 補錄
urbanity
都雅；禮數
英文釋義：都雅；禮數
用法／搭配：沒有誠實的都雅是空拋光。
Example · TTS
Urbanity without honesty is empty polish. （都雅；禮數）
詳細 · 幽默聯想庫 P3-pending-b03 補錄
urgency
緊急
英文釋義：緊急
用法／搭配：考意錨點：緊急
Example · TTS
On the exam, urgency most nearly means a sense of "緊急". （緊急）
詳細 · 紅寶書
utilitarian
實用主義的
英文釋義：someone who believes that the value of a thing depends on its utility; having a useful function
相似詞：useful
相反詞：useless
派生詞：utility n.
用法／搭配：核心義：someone who believes that the value of a thing depends on its utility。中文錨點：實用主義的。GRE tip: "utilitarian" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the utilitarian of X; a sense / degree / lack of utilitarian; amid / despite utilitarian Sentence frame: The debate turns on the utilitarian of ______. （空格填入與「實用主義的」相關的對象。）
Example · TTS
Plain utilitarian kitchenware. （實用主義的）
詳細 · 紅寶書
utopia
空想的｜教學補註：a book written by Sir Thomas More (1516) describing the perfect society on an...
英文釋義：a book written by Sir Thomas More (1516) describing the perfect society on an imaginary island; ideally perfect state; especially in its social and political and moral aspects
相似詞：Zion, Sion
相反詞：dystopia
派生詞：Utopian adj.
用法／搭配：核心義：a book written by Sir Thomas More (1516) describing the perfect society on an imaginary island。中文錨點：空想的｜教學補註：a book written by Sir Thomas More (1516) describing the perfect society on an。GRE tip: "utopia" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the utopia of X; a sense / degree / lack of utopia; amid / despite utopia Sentence frame: The debate turns on the utopia of ______. （空格填入與「空想的｜教學補註：a book written by Sir Thomas More (1516) describing the perfect society on an」相關的對象。）
Example · TTS
A clear sense of utopia is crucial to understanding the argument. （空想的）
詳細 · 複習詞、紅寶書
utopian
烏託邦的；理想化的
英文釋義：an idealistic (but usually impractical) social reformer; of or pertaining to or resembling a utopia
相反詞：dystopian
派生詞：Utopia n.
用法／搭配：核心義：an idealistic (but usually impractical) social reformer。中文錨點：烏託邦的；理想化的。GRE tip: "utopian" often names an abstract idea—look for of-phrases and whether it is countable in context. 搭配：the utopian of X; a sense / degree / lack of utopian; amid / despite utopian Sentence frame: The debate turns on the utopian of ______. （空格填入與「烏託邦的；理想化的」相關的對象。）
Example · TTS
A Utopian believes in the ultimate perfectibility of man. （烏託邦的；理想化的）
詳細 · 複習詞、紅寶書
utter
完全的｜教學補註：articulate
英文釋義：articulate; either verbally or with a cry, shout, or noise; express audibly; utter sounds (not necessarily words)
相似詞：express, verbalize, verbalise, emit, talk, speak
相反詞：local, absorb, keep quiet
派生詞：utterable adj., utterer n., utterance n.
用法／搭配：核心義：to articulate。中文錨點：完全的｜教學補註：articulate。GRE tip: treat "utter" as an action verb—ask who does what to whom, and whether the tone is neutral or charged. 搭配：to utter sth; refuse / choose / begin to utter; the utterring of X Sentence frame: The committee decided to utter ______ after ______. （造句時把空格填成符合「完全的｜教學補註：articulate」的對象與原因。）
Example · TTS
He uttered strange sounds that nobody could understand. （完全的）