heretic

1 a person who believes, teaches, or advocates something opposed to accepted beliefs <Galileo was condemned as a heretic for supporting Copernicus's thesis that the earth revolves around the sun and not vice versa> Synonyms dissenter, dissentient, dissident, heresiarch, nonconformist Related Words apostate, defector, renegade; schismatic, sectarian, separationist, separatist; disbeliever, infidel, misbeliever, unbeliever; bohemian, individualist Near Antonyms believer Antonyms conformer, conformist

2 a person who does not conform to generally accepted standards or customs <he's the ultimate heretic: a Yankees fan living deep in the heart of the Red Sox Nation> Synonyms bohemian, boho, counterculturist, deviant, enfant terrible, free spirit, nonconformist, iconoclast, individualist, loner, lone ranger, lone wolf, maverick, nonconformerRelated Words freethinker; character, codger, crackbrain, crackpot, crank, eccentric, freak, kook, nut, oddball, screwball, weirdo; eight ball, misfit, outsider; aberrant, anomalyNear Antonyms adherent, follower, supporter; sheepAntonyms conformer, conformist