Example : A flip answer to serious question.
The student was kept in for impudent behavior.

Synonyms : flip, impudent, snotty-nosed

Example : An audacious trick to pull.
A barefaced hypocrite.
The most bodacious display of tourism this side of Anaheim.
Bald-faced lies.
Brazen arrogance.
The modern world with its quick material successes and insolent belief in the boundless possibilities of progress.

Synonyms : audacious, bald-faced, barefaced, bodacious, brassy, brazen, brazen-faced