Breaking with convention or tradition; not orthodox.
Guilty of apostasy
Adhering to the Christian faith as expressed in the early Christian ecumenical creeds.
The definition of dissident is not in agreement.
Not in agreement with accepted beliefs, especially in church doctrine or dogma.
Find another word for heretical. In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for heretical, like: skeptical, unorthodox, apostate, atheistic, orthodox, dissident, heterodox, apostatical, anti-christian, unbiblical and unscriptural.