impudent (adj.)
- arrant
- arrogant
- audacious
- aweless
- barefaced
- blatant
- bluff
- bold
- brash
- brassy
- brazen
- bumptious
- challenging
- cheeky
- cocksure
- cocky
- contemptuous
- contumelious
- crusty
- daring
- defiant
- derisive
- discourteous
- disdainful
- disparaging
- disrespectful
- flip
- flippant
- forward
- fresh
- gratuitous
- ill-mannered
- impertinent
- impolite
- improvident
- imprudent
- incautious
- indiscreet
- injudicious
- insolent
- irreverent
- nervy
- overbold
- overconfident
- overweening
- pert
- presumptuous
- rash
- rude
- sassy
- saucy
- shameless
- smart
- temerarious
- unabashed
- unblushing
- uncalled-for
- uncivil
- unwary
