What does blasphemous mean?
Blasphemous is an adjective used to describe words, actions, or works that show contempt, mockery, or irreverence toward God, a deity, or anything considered sacred. It derives from blasphemy, and to call something blasphemous is to accuse it of violating religious reverence — whether a statement denying core doctrines, an image ridiculing holy figures, or conduct that defiles sacred spaces. The word carries heavy moral weight: in many religious traditions blasphemy has been treated not merely as bad manners but as grave sin, and several legal systems still criminalise it. Consequently, describing something as blasphemous is rarely neutral; it typically signals condemnation from a religious standpoint. In secular contexts the term can also be applied figuratively to attacks on widely held ideals, though this looser use risks diluting its force. Related forms include blasphemy (the noun), blasphemously (the adverb), and the verb blaspheme, all sharing the same ancient root concerning harmful or slanderous speech.
adjectiveShowing irreverence or disrespect toward God, a deity, or sacred things; constituting or involving blasphemy.
- Offensive or irreverent toward God, a deity, or sacred persons, objects, or ideas; constituting blasphemy.
"The novelist was accused of writing a blasphemous portrayal of the prophet that outraged religious communities across the country."
"He was arrested after making blasphemous statements during the public debate."
"Critics condemned the film as blasphemous, arguing it mocked deeply held religious convictions."
The word traces back to Greek 'blasphemia' — meaning 'evil speaking' — and in some countries even today, calling something blasphemous can carry legal consequences, not just social outrage.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of blasphemous
Blasphemous comes via Late Latin 'blasphemus' and Old French from Greek 'blasphemos', formed from 'blaptein' (to harm) and 'pheme' (speech or saying), so its original sense was literally 'injurious speech'. The related noun blasphemy entered English through Old French and Latin during the Middle Ages, with the adjective developing alongside it in later centuries. Cognate forms appear across European languages, reflecting the shared Greek-Latin inheritance.
Related word forms
How blasphemous is actually used
The word is formal to neutral in register and carries strong negative connotation. Its force depends heavily on context: within devout communities it signals serious offence, while in secular usage it often functions more loosely to describe anything perceived as irreverent toward cherished values or institutions. Because it implies actual wrongdoing against religion rather than mere rudeness, it should be used deliberately rather than casually.
Easily confused with blasphemous
Blasphemous describes speech or acts that insult or show contempt for what is sacred, while heretical describes beliefs that contradict accepted religious doctrine.
Sacrilegious refers specifically to the violation or misuse of sacred objects, places, or rituals, whereas blasphemous centres on disrespectful words or expressions directed at God or holy things.