heretic
Definitions
A person holding an opinion at odds with what is generally accepted.
A person believing in or practicing religious heresy.
Examples
The medieval church branded him a heretic for questioning the established religious doctrines.
In the world of traditional art, he was considered a heretic for embracing digital tools and abstract techniques.
Synonyms
dissident nonconformist apostate sectarian freethinker renegade schismatic
Antonyms
believer conformist orthodox adherent devotee loyalist traditionalist