Synonyms of faultfinder

1 Syllable

crab, crank, grouch, grump

2 Syllables

nagger, grouser, sulkers, gripers, grouches, quibblers, scolder, blamers, blamer, quibbler, carper, fretter, naggers, knockers, panner, nigglers, crabbing, niggler, fretters, sourpuss, grouched, growler, crosspatch, grumbler, moaner, killjoy, griper, whiner, zapper, knocker, sulker

3 Syllables

nitpicker, slanderer, mudslinger, mudslingers, sniveler, curmudgeon, caviler, cavilers, snivelers, caviller, complainer, complainers, mutterers, crybaby, mutterer, bellyacher, sorehead, aristarch, belittler

4 Syllables

criticizers, disparager, castigator, disapprover, hypercritic, castigators, criticizer