Nonconformist(n.) One who does not conform to an established church; especially, one who does not conform to the established church of England; a dissenter.
Thesaurus Entries
Albigensian, Arian, Bohemian, Cathar, Donatist, Ebionite, Erastian, Gnostic, Jansenist, Lollard, Manichaean, Monophysite, Montanist, Pelagian, Sabellian, Waldensian, Wyclifite, agitator, alien, anomaly, antagonistic, antinomian, antipathetic, apostate, beatnik, brawler, breakaway, capricious, case, changeable, changing, character, choppy, clashing, conflicting, contradicting, contradictory, counteractant, counteracting, counteractive, countervailing, counterworking, crackpot, crank, cranky, crosspatch, crotchety, demurrer, deviant, deviating, deviative, deviatory, different, disorderly, dissenter, dissentient, dissident, divaricate, divergent, diversified, diversiform, dropout, eccentric, emanationist, erose, erratic, exception, extremist, fanatic, flake, flower child, freak, frondeur, heretic, heretical, hermit, heterodox, hippie, hobo, hostile, hylotheist, iconoclast, iconoclastic, impulsive, inconsistent, inconstant, individualist, individualistic, inimical, inner-directed, inner-directed person, insubordinate, insurgent, insurrectionary, insurrectionist, insurrecto, irregular, jagged, jerky, kook, lone wolf, loner, malcontent, maverick, mercurial, meshuggenah, misbeliever, misfit, motley, mutable, mutineer, natural, naysayer, nonconformer, nonconforming, nonjuror, nonstandard, nonuniform, nut, objector, odd fellow, oddball, oddity, opinionist, opposing, opposition voice, oppositional, oppugnant, original, outsider, pantheist, pariah, perverse, pluralistic, protestant, protester, queer duck, queer fish, queer specimen, radical, ragged, rara avis, reactionary, rebel, rebellious, recalcitrant, recluse, recusant, renegade, renitent, repugnant, resistant, revolter, revolutionary, revolutionist, rioter, rough, schismatic, screwball, sectarian, sectary, separatist, solitary, spasmodic, sporadic, sport, strange duck, subversive, swinger, traitor, tramp, type, ugly duckling, unconformist, unequable, unequal, uneven, unorthodox, unstable, unsteady, unsystematic, ununiform, variable, variegated, variform, various, varying, wavering, weirdo, yippie, zealot