Synonyms and Antonyms of sincere
- she offered a sincere apology for her angry outburst
- done out of a sincere desire to help others
artless, genuine, guileless, honest, ingenuous, innocent, naive (or naïve), natural, real, simple, true, unaffected, unpretending, unpretentious
childlike, dewy-eyed, gee-whiz, impressionable, inexperienced, malleable, persuadable, persuasible, simpleminded, unsophisticated, unworldly, wide-eyed
spontaneous, unforced, unstudied
candid, direct, frank, free, free-spoken, open, openhearted, plain, plainspoken, single-minded, straight, straightforward, unguarded
exploitable, gullible (also gullable), susceptible, unwary
critical, cynical, mistrustful, skeptical, suspicious, wary
cosmopolitan, sophisticated, worldly, worldly-wise
civilized, cultivated, cultured, polished, refined
crooked, deceitful, deceptive, devious, double-dealing, hypocritical, manipulative, two-faced
arch, calculating, canny, crafty, cunning, designing, foxy, knavish, scheming, sharp, shifty, shrewd, slick, slippery, sly, subtle, tricky, underhanded, wily
affected, artful, artificial, assuming, dishonest, dissembling, dissimulating, fake, false, guileful, insincere, phony (also phoney), pretentious