Synonyms of facetious

1 Syllable
gay, schtick, smart, droll, flip, gump, dry, wry
2 Syllables
witty, sprightly, clever, playful, booner, wittier, funnier, boffo, joking, jollying, funny, campy, jovial, festal, comic, punning, laughing, blithe, screamer, rioter, merrier, grooving, zappy, zingy, flippant, funniest, salty, merry, merriest, zingier, pleasant, goofus, har-har, jokey, waggish, jesting, joshing, campiest
3 Syllables
fanciful, farcical, humorous, light-minded, riproaring, nonserious, gelastic, sarcastic, comical, quick-witted, sharp-sighted, sportive, rip-roaring, whimsical, jocular, amusing, frivolous, kiddingly, fool-headed, ludicrous, capering, jocose, laughable, ironic
4 Syllables
derisory, satirical, saturnalian, conversable, ridiculous, tongue-in-cheek, irreverent, indecorous, wisecracking