captious

given to making or expressing unfavorable judgments about things a captious and cranky eater who's never met a vegetable he didn't hate Synonyms critical, carping, caviling (or cavilling), faultfinding, hypercritical, judgmental, overcritical, rejectiveRelated Words discerning, discriminating, judicious; demanding, exacting, fastidious, finical, finicky, fussy, nitpicky, particular, picky; pettifogging, quibbling; harsh, merciless, uncharitable, unforgivingNear Antonyms undiscriminating; undemanding, unfussy; charitable, forgivingAntonyms uncritical