Frank

Antonyms of FRANK

different, vague, tight-lipped, devious, dishonest, meek, genial, close-mouthed, equivocal, reserved, restrained, ambiguous, laconic, refined, politic, unobvious, civil, quiet, bland, evasive, unclear, tactful, taciturn, timid, dissembling, shy, uncommon, polite, considerate, courteous, indirect, secretive, diplomatic, inhibited, abnormal, urbane, insincere, polished, lying.