insolent

(s) marked by casual disrespect
- a flip answer to serious question
- the student was kept in for impudent behavior
flip, impudent, snotty-nosed,
(s) unrestrained by convention or propriety
- an audacious trick to pull
- a barefaced hypocrite
- "the most bodacious display of tourism this side of Anaheim"- Los Angeles Times
- bald-faced lies
- brazen arrogance
- "the modern world with its quick material successes and insolent belief in the boundless possibilities of progress"- Bertrand Russell
brazen, brazen-faced, audacious, bald-faced, barefaced, bodacious, brassy,

flip impudent snotty-nosed brazen brazen-faced audacious bald-faced barefaced bodacious brassy

insolently