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heresy

Pronunciation: /ˈhɛrɪsi/

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Definition of heresy

noun (plural heresies)

[mass noun]

belief or opinion contrary to orthodox religious (especially Christian) doctrine:Huss was burned for heresy [count noun]:the doctrine was denounced as a heresy by the pope
opinion profoundly at odds with what is generally accepted:the heresy of being uncommitted to the right political dogma

Origin:

Middle English: from Old French heresie, based on Latin haeresis, from Greek hairesis 'choice' (in ecclesiastical Greek 'heretical sect'), from haireomai 'choose'