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