See more synonyms for irreligious on
  1. not religious; not practicing a religion and feeling no religious impulses or emotions.
  2. showing or characterized by a lack of religion.
  3. showing indifference or hostility to religion: irreligious statements.

Origin of irreligious

From the Latin word irreligiōsus, dating back to 1555–65. See ir-2, religious
Related formsir·re·li·gious·ly, adverbir·re·li·gious·ness, ir·re·lig·i·os·i·ty [ir-i-lij-ee-os-i-tee] /ˌɪr ɪˌlɪdʒ iˈɒs ɪ ti/, noun
Can be confusedirreligious sacrilegious unreligious

Synonyms for irreligious

See more synonyms for on Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for irreligious


  1. lacking in, indifferent to, or opposed to religious faith
Derived Formsirreligiously, adverbirreligiousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for irreligious

c.1400, from Late Latin irreligiosus "irreligious, impious," from assimilated form of in- "not, opposite of" (see in- (1)) + religiosus (see religious). Related: Irreligiously.

Online Etymology Dictionary, © 2010 Douglas Harper