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

编辑：张雨

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