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