Synonyms to fifth columnist

apostate, Sabbath-breaker, atheist, atheistic, backslider, backsliding, blasphemer, blasphemous, bolter, collaborationist, collaborative, collaborator, convert, defector, degenerate, demurrer, deserter, disloyal, dissenter, dissentient, dissident, faithless, fallen, fallen from grace, impious, irreligious, irreverent, lapsed, mugwump, nonconformist, objector, opinionist, opposition voice, profanatory, profane, proselyte, protestant, protester, quisling, rat, recidivist, recidivistic, recreant, recusant, renegade, renegado, renegate, reversionist, runagate, sacrilegious, sacrilegist, schismatic, seceder, secessionist, sectarian, sectary, separatist, strikebreaker, tergiversant, tergiversating, tergiversator, traitor, traitorous, treasonable, treasonous, turnabout, turncoat, turntail, unbeliever, undutiful, Trojan horse, advertising writer, annalist, art critic, author, authoress, belletrist, bibliographer, coauthor, columnist, compiler, composer, copywriter, creative writer, critic, crypto, dance critic, de