flippant

1. 1

   Showing disrespect through a casual attitude, levity, and a lack of due seriousness; pert.

   • a sort of flippant, vain discourse
   • The conversations had grown more adult over the years—she was less flippant, at least.
2. 2

   Loquacious; speaking with ease and rapidity.archaic

   • November 5, 1673, Isaac Barrow, sermon on the Gunpowder Treason It becometh good men, in such cases, to be pleasantly flippant and free in their speech.
3. 3

   Nimble; limber.dialectal

ant. serious