Of or pertaining to heresy or heretics. / (of ideas or views) Contrary to mainstream or accepted opinion.

In a heretical way, or to a heretical extent

The quality of being heretical.

Someone who believes contrary to the fundamental tenets of a religion they claim to belong to. / Someone who does not conform to generally accepted beliefs or practices

(archaic) Heretical; of or pertaining to heresy or heretics.

plural of heretic

Third-person singular simple present indicative form of hereticate

(transitive) To denounce as heresy or a heretic.

simple past tense and past participle of hereticate

present participle of hereticate