What is define heretic?

A heretic is someone who holds beliefs or opinions that go against established religious or cultural norms and are considered to be unorthodox or even dangerous. Heresy is the belief or opinion that differs from the orthodox or accepted doctrine of a particular religious or cultural group. The term "heretic" is often used in a derogatory sense and has been associated with punishment and persecution throughout history. In some cases, heretics have been subjected to excommunication, imprisonment, torture, or even death for challenging the established beliefs of their society or religious group. However, the concept of heresy has been debated and reinterpreted over time, and many people now view it as a subjective label used to marginalize dissenting voices rather than a meaningful designation of theological error.