Benedict Arnold, Brutus, Judas, Judas Iscariot, Judas-like, Quisling, Trojan-horse, apostate, archtraitor, backslider, betrayer, betraying, bolter, cockatrice, collaborationist, collaborator, conniver, conspirator, conspirer, convert, convict, criminal, crook, deceiver, defector, deserter, desperado, desperate criminal, double agent, double-crosser, double-crossing, double-dealer, felon, fifth columnist, fifth-column, fugitive, gallows bird, gangster, gaolbird, informer, intrigant, intriguer, jailbird, lawbreaker, machinator, mobster, mugwump, outlaw, plotter, proselyte, public enemy, quislingistic, racketeer, rat, recidivist, recreant, renegade, renegado, renegate, reversionist, runagate, schemer, schismatic, scofflaw, seceder, secessionist, separatist, serpent, snake, strikebreaker, swindler, tergiversant, tergiversator, thief, thug, timeserver, traitor, traitorous, treasonable, treasonist, treasonous, trimmer, turnabout, turncoat, turntail, two-timer, two-timing