DictionaryhereticDissenter from accepted doctrine
noun

heretic

HAIR-uh-tik/ˈherətɪk/

A person whose beliefs contradict an accepted doctrine.

The church considers him a heretic because he rejects its teachings.

Historical thinker openly disagrees with religious council, standing apart and gesturing toward own manuscript, calm conviction, no writing visible.
Etymology

The choosing root produced an adjective meaning “able to choose,” while related “choice” language came to mean a school of thought or sect. Religious usage narrowed this to unorthodox doctrine, making a heretic someone who holds such views.

In context

about-the-world0:33
a heretic was basically just anyone whose religious beliefs went against the official teachings of the church in Rome.
The Inquisition Early Fight Against Heresy (Podcast)

More examples

  • Among traditional economists, she is a heretic for questioning free markets.
  • The council accuses the scholar of being a heretic.
  • The movement treats those who challenge its central beliefs as heretics.

Forms

heretic · heretics

heresy noun — Belief that contradicts an accepted doctrine.

heretical adjective — Contrary to an accepted doctrine or belief.

Similar words

dissenter
Disagrees with prevailing views, not necessarily an established doctrine.
nonconformist
Rejects customary behavior or attitudes, not necessarily doctrinal beliefs.
apostate
Abandons a former faith rather than merely contradicting doctrine.