THESAURUS
nitpicker
belittler, captious critic, carper, caviler, censor, censurer, common scold, critic, criticizer, equivocator, faultfinder, frondeur, hairsplitter, hedger, momus, mystificator, mystifier, obscurantist, palterer, perfectionist, pettifogger, picayune critic, precisian, precisianist, prevaricator, pussyfoot, pussyfooter, quibbler, scold, shuffler, smellfungus, stickler, tergiversator