impertinent (adj.)
- adrift
- arrogant
- audacious
- bluff
- bold
- brash
- brassy
- brazen
- bumptious
- busy
- challenging
- cheeky
- cocky
- contemptuous
- crusty
- daring
- defiant
- derisive
- discourteous
- disdainful
- disrespectful
- extraneous
- extrinsic
- flip
- flippant
- foreign
- forward
- fresh
- gratuitous
- immaterial
- impolite
- impudent
- inadmissible
- inapplicable
- inapposite
- inappropriate
- incidental
- inconsequent
- inquisitive
- insolent
- interfering
- intrusive
- irrelevant
- meddlesome
- meddling
- nervy
- nonessential
- nosy
- obtrusive
- offensive
- officious
- out-of-the-way
- parenthetical
- pert
- presumptuous
- prying
- pushy
- rude
- sassy
- saucy
- self-appointed
- smart
- snoopy
- uncalled-for
- uncivil
- unessential
