Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

936. Detractor — N. detractor, reprover; censor, censurer; cynic,

critic, caviler, carper, word-catcher, frondeur; barracker†. defamer, backbiter, slanderer, Sir Benjamin Backbite, lampooner, satirist, traducer, libeler, calumniator, dawplucker†, Thersites†; Zoilus; good-natured friend [Iron.]; reviler, vituperator, castigator; shrew &c 901; muckraker. disapprover, laudator temporis acti [Lat.] [Horace]. Adj. black-mouthed, abusive &c 934.