heretic
1. [ noun ] (Roman Catholic) a person who holds religious beliefs in conflict with the dogma of the Roman Catholic Church
Synonyms: religious_outcast misbeliever
Related terms: outcast misbelieve
2. [ noun ] (religion) a person who holds unorthodox opinions in any field (not merely religion)
Related terms: nonconformist
Similar spelling:   heretical
  heartsick
  heartache
  hearts
  Herridge
  heartseed