Synonyms of irreverent

1 Syllable
flip, rude, fresh
2 Syllables
mocking, sassy, impious, saucy, crusty, cheeky, flippant, snarky, punning, cocky
3 Syllables
impudent, out-of-line, insolent, hardened, unholy, contemptuous, free-thinking, freethinking, ungodly, unfilial, undevout, facetious, profane, profaning, aweless, kiddingly
4 Syllables
impertinent, derisive, unhallowed, disrespectful, tongue-in-cheek, sacrilegious, irreligious, unsanctified, wisecracking
5 Syllables
pejorative, irreverential, iconoclastic, unconsecrated