heretic
adjective
1. (archaic) Heretical; of or pertaining to heresy or heretics.
noun
1. a person who holds religious beliefs in conflict with the dogma of the Roman Catholic Church
Similar word(s): misbeliever
Definition categories: person, castaway, ishmael, outcast, pariah
2. a person who holds unorthodox opinions in any field (not merely religion)
Definition categories: person, nonconformist, recusant