- viper
- n1. scoundrel, villain, rogue, knave, good-for-nothing; wretch, cur, churl, Sl. stinker, Obs. stinkard, Inf. heel, cad; blackguard, rascal, scamp, devil; wretch, worm, Sl. no-goodnik, Sl. lowlife, Inf. bum, degenerate; rotter, Chiefly Brit. bounder, scum, Sl. bastard, Sl. son of a bitch, Sl. SOB, Archaic. whoreson; All Sl. crumb, momzer, shmuck, putz, rat.2. traitor, betrayer, snake, snake in the grass, Inf. double-crosser, Inf. double-dealer, backstabber, Sl. two-timer, Judas; quisling, turncoat, renegade, Benedict Arnold; fifth columnist, informer, subversive, double agent; conspirator, collaborator, Catilinarian, Brutus; spy, company spy, Sl. fink, Sl. rat-fink, Sl. weasel, Sl. stool pigeon or stoolie, squealer, tattler, Sl. ratter; liar, prevaricator, hypocrite, pharisee; deceiver, cheat, swindler; dissembler, wolf in sheep's clothing.
A Note on the Style of the synonym finder. 2014.