Synonyms of flippant

1 Syllable
flip, pert, smart, rude, fresh, glib
2 Syllables
brassy, nervy, sassy, lippy, jaunty, saucier, saucy, cheeky, impish, prankish, breezy, swimmy, flighty, perter, playful, jauntier, pixieish, pertest, punning, sassier, cocky, offhand
3 Syllables
frivolous, impudent, light-minded, insolent, nonserious, precocious, lightheaded, kiddingly, unfilial, facetious, aweless, malapert, light-hearted
4 Syllables
impertinent, smart-alecky, volatile, gamesome, disrespectful, tongue-in-cheek, irreverent, superficial, wisecracking
5 Syllables
irreverential