noun
- the leader or founder of a heretical sect or movement
Usage: formal; religious
Examples
- The council condemned the heresiarch and his followers.
- Medieval chronicles often portrayed him as a dangerous heresiarch.
- The heresiarch attracted many disciples with his radical teachings.
- Church authorities sought to silence the influential heresiarch.
- The heresiarch’s writings were banned and burned.
- Many considered the reformer a heresiarch rather than a prophet.