overcritical

given to making or expressing unfavorable judgments about things an overcritical teacher can discourage even the most dedicated of students Synonyms captious, carping, caviling (or cavilling), faultfinding, hypercritical, judgmental, critical, 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