49 synonyms for pretentious such as big, affected, and artificial. Pretentious is an adjective, and its antonyms are natural and unaffected.
Affected, artificial, big, bombastic, chi-chi, conspicuous, dicty, elaborate, extravagant, fancy-pants, flamboyant, flashy, flatulent, flaunty, flowery, fustian, grand, grandiloquent, grandiose, heroic, high-flown, high-sounding, highfalutin, hyperventilated, inflated, kitschy, la-di-da, magniloquent, mannered, oratorical, ornate, orotund, ostentatious, overambitious, overblown, overripe, pompous, poncy, posey, pseud, pseudo, rhetorical, showy, sophomoric, tasteless, tinselly, toffee-nosed, and turgid.