to find fault or complain querulously or unreasonably; be niggling in criticizing; cavil

to carp at minor errors.

a peevish complaint.

verb

ignore , let go

verb

bother , cavil , censure , complain , criticize , find fault , fuss , grumble , hypercriticize , knock , nitpick * , objurgate , pan , peck * , pick at , quibble , reproach , niggle , nitpick , pettifog , bicker , censor , chatter , condemn , disparage , dissent , fish , henpeck , nag , nibble , rant , scold , speak , talk

phrasal verb

fuss at , peck at , pick on