Contrary to or different from an acknowledged standard, a traditional form, or an established religion; unorthodox, unconventional. Or, holding unorthodox opinions or doctrines. Individuals often see other people's ideas as unconventional while regarding their own as beyond reproach. Contemporaries of Nicolaus Copernicus certainly considered him "not orthodox" (which in his day meant "not correct"), but they wouldn't have called him "heterodox" because that word didn't gain widespread use in English until about 100 years after he died. Although "orthodox" and "heterodox" are considered antonyms, they developed from the same root, the Greek "doxa," which means "opinion." "Heterodox" derives from a combination of "doxa" plus "heter-," a prefix meaning "other" or "different"; "orthodoxy" pairs "doxa" with "orth-," meaning "correct" or "straight."(pr. HEH-tə-rə-DAHKS or HEH-truh-DAHKS)Also see avant-garde, bohemianism, censor, contrast, creativity, eccentric, edge, iconoclasm, issue, political correctness, and transgressive art.