niggle

to make often peevish criticisms or objections about matters that are minor, unimportant, or irrelevant you know it drives me crazy when you niggle like that Synonyms carp, cavil, fuss, quibble, nitpickRelated Words criticize, fault; beef, bellyache, bitch, complain, crab, croak, gripe, grouse, growl, grumble, kick, kvetch, moan, squawk, squeal, wail, whimper, whine, yammer, yawp (or yaup), yowl; murmur, mutterNear Antonyms applaud, commend, compliment, praise, recommend; approve, back, champion, endorse (also indorse), support