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heresy JUST WRITTEN FOR YOU

/ˈhɛɹəsi/ · her·e·sy
noun
  1. A doctrine or opinion held by a member of a religion at variance with established religious beliefs, especially dissension from Roman Catholic dogma. The accused was charged with heresy for questioning the authority of the Pope.
  2. A controversial or unorthodox opinion held by a member of a group, as in politics, philosophy or science. The scientist's heresy that the Earth was round was met with skepticism by his peers.
Did you know? The term 'heresy' has been used to describe a wide range of unconventional ideas throughout history, from the early Christian Church to modern-day scientific theories.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 16, 2026