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1. impudent / imprudent
impudent: very rude
imprudent: not wise or sensible: not prudent
2. insolent / indolent / redolent
insolent: rude or impolite
indolent: not liking to work or be active
redolent: causing thoughts or memories of something
3. witty / witting
witty: funny and clever
witting: cognizance / news
4. discernible / discerning
discernible: able to be identified as separate and distinct
discerning: able to see and understand people, things, or situations clearly
and intelligently
5. exhaustive / exhausted
exhaustive: including all possibilities: very thorough
exhausted: be tired out or worn out
6. aver / avert / averse / avow / advent /advert
aver: to say something in a very strong and definite way
avert: to prevent (something bad) from happening
averse: having an active feeling of repugnance or distaste
avow: to declare or state (something) in an open and public way
advent: second coming
advert: announcement; notification
7. feckless / reckless
feckless: weak and ineffective; worthless;irresponsible
reckless: not showing proper concern about the possible bad results of your actions
8. mean / mien
mien: a person’s appearance or facial expression
9. humdrum / conundrum
humdrum: dull, boring, and ordinary
conundrum: a confusing or difficult problem
10.immune / immure / inure
immure: to enclose within or as if within walls
inure: to cause (someone) to be less affected by something unpleasant
11. enjoin / adjoin
enjoin: to direct or order (someone) to do something; to prevent (someone) from doing something
adjoin (of a building, room, area of land, etc. ): to be next to or joined with something
12.abjure / adjure
abjure: to reject (something) formally
adjure: to urge or command (someone) to do something
13.bypass / surpass / impasse / impassive
bypass: to avoid or ignore (someone or something) especially to get something done quicker
impasse: a situation in which no progress seems possible
impassive: not showing emotion
14.pertinacious / tenacious
pertinacious: adhering resolutely to an opinion, purpose, or design; stubbornly tenacious
tenacious: very determined to do something
15.endanger / engender
engender: to be the source or cause of something
16.intellectual /intelligible / intelligent
intelligible: able to be understood
17.perquisite / prerequisite
perquisite: gratuity, tip
prerequisite: something that you officially must have or do before you can have or do something else
18.passionate / dispassionate
dispassionate: not influenced or affected by emotions
19.precocity / preciosity
precocity: the phenomenon of a child showing the qualities or abilities of an adult at an unusually early age
preciosity: fastidious refinement
20.apprehend / reprehend / comprehend
apprehend: to notice and understand (something); (of police) to arrest (someone)
reprehend: the voice disapproval of: censure
21.hearten / hearken
hearten: to cause (someone) o feel more cheerful or hopeful
hearken: listen; to give respectful attention
22.enchant / chant
enchant: to attract and hold the attention of (someone) by being interesting, pretty, etc.
chant: to say (a word or phrase) many times in a rhythmic way usually loudly and with other people
23.rant / cant / scant / dent
rant: to talk loudly and in a way that shows anger
cant: tilt
scant: very small in size or amount
dent: to make (something) weaker
24.pithy / filthy
pithy: using few words in a clever and effective way
filthy: very dirty; very evil
25.coerce / coarse
coerce: to make (someone) do something or get (something) by using force or threats
26.liberal / literal
literal: completely true and accurate: not exaggerate
27.modest / moderate
28.anomaly / analogy
analogy: a comparison of two things based on their being alike in some way
29.lucid / pellucid
lucid: very clear and easy to understand
pellucid: very clear
30.enigma / stigma
enigma: someone or something that is difficult to understand or explain(迷)
stigma: a set of negative and often unfair beliefs that a society or group of people have about something
31. censure / censor / census / consensus
censure: officially strong criticism
consensus: a general agreement about something
32. mount / surmount / paramount / amount / tantamount
surmount: to deal with (a problem or a difficult situation) successfully; to be placed at the top of something
tantamount: equal to something in value, meaning, or effect
33. defy / defer/ deter
defer: put off, delay, postpone
deter: to prevent (something) from happening
34. spur / spurn / spurious / spurt
spurn: to refuse to accept (something or someone that you do not think deserves your respect, attention, affection, etc.)
spurious: not genuine sincere, or authentic
spurt: to gush forth
35. disparage / disparate
disparage: to describe (someone or something) as unimportant, weak, bad, etc.
disparate: different from each other
36. aesthetic / aseptic / ascetic / anesthetic
aseptic: free from germs that cause disease
ascetic: relating to or having a strict and simple way of living that avoids physical pleasure
anesthetic: a drug that causes a person to lose feeling and to feel no pain in part or all of the body
37. ostensible / ostentatious
ostensible: seeming or said to be true or real but very possible not true or real
ostentatious: an unnecessary display of wealth, knowledge, etc., that is done to attract attention, admiration, or envy
38. perspicuous / perspicacious
perspicuous: clear, apparent
perspicacious: having or showing an ability to notice and understand things that are difficult or not obvious
39. willful / willed / willing
willful: refusing to change your idea or opinion; done deliberately
willed: deliberate
40. forbear / forebear
forbear: to avoid doing or saying (something)
forebear: a member of your family in the past
41. rife / strife / stifle
rife: If you say that something, usually something bad, is rife in a place or that the place is rife with it, you mean that it is very common.
strife: Strife is strong disagreement or fighting. (FORMAL)
stifle: If someone stifles something you consider to be a good thing, they prevent it from continuing.(=repress)
If you stifle your natural feelings or behavior, you prevent yourself from having those feelings or behaving in that way.(=suppress)
42. retrench / entrench
retrench: If a person or organization retrenches, they spend less money. (FORMAL)
entrench: If something such as power, a custom, or an idea is entrenched, it is firmly established, so that it would be difficult to change it.
43. pejorative / prerogative
pejorative: A pejorative word or expression is one that expresses criticism of someone or something. (FORMAL)
prerogative: If something is the prerogative of a particular person or group, it is a privilege or a power that only they have. (FORMAL)
44. patent / latent / salient / valiant
latent: Latent is used to describe something which is hidden and not obvious at the moment, but which may develop further in the future.
salient: The salient points or facts of a situation are the most important ones. (FORMAL)
valiant: A valiant action is very brave and determined, though it may lead to failure or defeat.
45. imminent / preeminent / prominent / eminent
imminent: If you say that something is imminent, especially something unpleasant, you mean it is almost certain to happen very soon.
preeminent: If someone or something is pre-eminent in a group, they are more important, powerful, or capable than other people or things in the group. (FORMAL)
prominent: important.
46. loutish / outlandish
loutish: If you describe a man or a boy as loutish, you are critical of them because their behavior is impolite and aggressive.
47. sprout / spout / flout / pout / tout
sprout: start to grow
spout: A spout of liquid is a long stream of it which is coming out of something very forcefully.( = jet)
If you say that a person spouts something, you disapprove of them because they say something which you do not agree with or which you think they do not honestly feel.
flout: If you flout something such as a law, an order, or an accepted way of behaving, you deliberately do not obey it or follow it.
pout: If someone pouts, they stick out their lips, usually in order to show that they are annoyed or to make themselves sexually attractive.
tout: If someone touts something, they try to sell it or convince people that it is good.
If someone touts for business or custom, they try to obtain it. (mainly BRIT)
48. flout / flaunt
flaunt: If you say that someone flaunts their possessions, abilities, or qualities, you mean that they display them in a very obvious way, especially in order to try to obtain other people's admiration.
flout - 蔑视
49. apt / opt / adept / adapt / adopt
opt: If you opt for something, or opt to do something, you choose it or decide to do it in preference to anything else.
apt：(1) 合适的(2)有倾向的(3) 聪敏的
50. swift / sift / rift / drift / thrift
sift: If you sift through something such as evidence, you examine it thoroughly.
rift: A rift between people or countries is a serious quarrel or disagreement that stops them having a good relationship.
swift - 快速的
thrift - 节约的
drift - 漂移