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GRE词汇解析：acrimony

acrimony: 尖刻; (n.) sharpness or bitterness in language or manner

1) sharpness, harshness, or bitterness of nature

The acrimony of her response was shocking

刻薄 

acerbity n.苦涩，刻薄 | acidulous adj.有酸味的，刻薄的 | acrimony n.尖刻，刻薄

acrimonious adj.尖刻的 | caustic adj.腐蚀性的，刻薄的 | flippancy n.无礼，言语尖刻

pungent adj.刺鼻的,苛刻的 | pungency n.刺激性,尖刻 | vinegared adj.酸的，尖刻的

vitriolic adj.刻薄的，强烈的 | waspish adj.易怒的，尖刻的 | acrid a 苦味的,辛辣的,尖刻的 

mordant adj.讥讽的，尖酸的 | nipping adj.尖酸的，剌骨的 | tart adj.酸的，尖酸的

GRE词汇解析：impervious

impervious: 不能渗透的, Incapable of being penetrated

1) not allowing entrance, incapable of being harmed or disturbed

2) impenetrable; not allowing anything to pass through; unaffected

3) impossible to penetrate

Synonyms: immune, resistant, unaffectedHe was impervious to criticism, which enabled him to experiment freely in his artwork.

The vest that the policeman wears is impervious to bullets.

The child was impervious to the actions of the adult.

【考法1】adj. 不可渗透的，不可穿透的： not allowing entrance or passage

【例】 The material for this coat is supposed to be impervious to rain. 这件大衣的材料应该是能防雨的

【近】 impassable, impenetrable, impermeable, impregnable

【反】 passable, penetrable, permeable, pervious 可渗透的

【考法2】adj. 不能被破坏的： not capable of being damaged or harmed

【例】 a carpet impervious to rough treatment 耐用的地毯

【近】 bulletproof, imperishable, indestructible, inextinguishable, invulnerable

【反】 delicate, sensitive, vulnerable 脆弱的，敏感的

【考法3】adj. 不为所动的： not capable of being affected or disturbed

【例】 These sailors are impervious to fear. 这些水手无所畏惧

【近】 immune, insusceptible, unaffected, unresponsive

【反】 ductile, pliable, pliant, yielding 易受影响的

GRE词汇解析：imperturbable

imperturbable: 冷静沉着的; marked by extreme calm, impassivity, and steadiness : SERENE

1) incapable of being disturbed

2) calm; not easily excited

3) marked by extreme calm, impassivity and steadiness

Synonyms: calm, composed, immovable, unexcited

imperturbable : composure

imperturbable <> touchy

imperturbable : NETTLE

By maintaining an imperturbable air throughout the crisis, she emerged as a steady and trustworthy leader.

The imperturbable West Point graduate made a fine negotiator.

【考法1】adj.沉着冷静的，淡定的： marked by extreme calm, impassivity, and steadiness

【例】 The chef was absolutely imperturbable—even when the kitchen caught on fire. 这个厨师可谓淡定到了极致——他连厨房着火的时候都依然沉着

【近】 collected, composed, cool, disimpassioned, nonchalant, unflappable, unruffled

【反】 choleric, touchy 暴躁的，易怒的

GRE词汇解析：impertinent

impertinent: 不恰当的; Exceeding the limits of propriety or good manners

impertinent : propriety

impertinent <> obeisant

sedate : impertinent

【考法1】adj. 无关紧要的： not having a clear decisive relevance to the matter in hand

【例】Your résumé needlessly lists extracurricular experiences that are impertinent to the PhD program for which

you are applying. 你的简历里列出的一些课外活动和你申请的博士项目是毫不相关的

【近】 extraneous, immaterial, inapplicable, inapposite, irrelevant

【反】 germane, pertinent, relevant 相关的;crucial, important, significant 重要的

【考法2】adj. 粗鲁无礼的，大胆的： given to or characterized by insolent rudeness

【例】I don't like strangers who ask impertinent questions. 我很讨厌那些问无礼问题的陌生人

【近】 audacious, bold, brash, brassbound, brassy, brazen, impudent, insolent

【反】 meek, mousy, retiring, shy, timid 内敛的，胆小的

【考法3】adj. 不守礼节的，不为他人着想的： showing a lack of manners or consideration for others

【例】 impertinent salesmen who telephone people during the dinner hour 在就餐时间打电话骚扰别人的无礼销售员

【近】 discourteous, disrespectful, inconsiderate, rude, thoughtless

【反】 civil, courteous, genteel, gracious, mannerly, polite有礼貌的;considerate 为他人着想的

GRE词汇解析：imperious

imperious: 傲慢的, 专横的; arrogantly domineering or overbearing

1) arrogant; urgent

imperious <> groveling

imperious <> obeisant 专横的<>服从的

imperious <> unassuming 傲慢的 <> 谦虚的

imperious <> humble专横的<>谦逊的

imperious <> obsequious专横的<>献媚的

imperious <> servile专横的<>奴性的

imperious : fawn = self-deprecating : swagger

Her imperious manner cost her her two best friends.

It was imperious that the message reach the police chief.

【考法1】adj. 爱发号施令的： fond of ordering people around

【例】 an imperious little boy who liked to tell the other scouts what to do 一个爱发号施令的小男孩，总是喜欢 指挥别的童子军做事

【近】 authoritarian, autocratic, despotic, dictatorial, domineering, masterful, tyrannical

【考法2】adj. 傲慢的，专横的： arrogantly domineering or overbearing

【例】 an imperious movie star who thinks she's some sort of goddess 一个把自己当成某种女神的傲慢的影星

【近】 arrogant, bumptious, haughty, lofty, lordly, peremptory, pompous, presumptuous, supercilious, superior

【反】 humble, lowly, modest 谦逊的

【考法3】adj. 迫切的： intensely compelling

【例】 As war casualties mounted, the need for trained nurses became imperious. 随着战争伤亡人数的攀升，对于受训护士的需求变得愈发迫切 [UB]vPXm$

【近】 clamant, compelling, critical, crying, dire, emergent, exigent, imperative, importunate, pressing, urgent

【反】 noncritical, unimportant 不重要的

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