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See more synonyms for irresponsible on Thesaurus.com
  1. said, done, or characterized by a lack of a sense of responsibility: His refusal to work shows him to be completely irresponsible.
  2. not capable of or qualified for responsibility, as due to age, circumstances, or a mental deficiency.
  3. not responsible, answerable, or accountable to higher authority: irresponsible as a monarch.
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  1. an irresponsible person.
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Origin of irresponsible

First recorded in 1640–50; ir-2 + responsible
Related formsir·re·spon·si·bil·i·ty, ir·re·spon·si·ble·ness, nounir·re·spon·si·bly, adverb

Synonyms for irresponsible

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for irresponsibilities

madness, craziness, absurdity, folly, frenzy, alienation, dementia, lunacy, hysteria, irresponsibility, confusion, disorder, chaos, terrorism, irrationality, silliness, bunk, insanity, stupidity, rubbish

Examples from the Web for irresponsibilities

Historical Examples of irresponsibilities

  • Her old freaks, if hinted at, were considered amusing, as one of the irresponsibilities of genius.

    Mrs. Severn, Vol. 1 (of 3)

    Mary Elizabeth Carter

  • Fletcher certainly "loosed the bonds of conduct and left human nature as a mere bundle of irresponsibilities," but not Beaumont.

    Francis Beaumont: Dramatist

    Charles Mills Gayley

British Dictionary definitions for irresponsibilities


  1. not showing or done with due care for the consequences of one's actions or attitudes; reckless
  2. not capable of bearing responsibility
  3. archaic not answerable to a higher authority for one's actions
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Derived Formsirresponsibility or irresponsibleness, nounirresponsibly, adverb
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 irresponsibilities



1640s, "not legally answerable for conduct or actions," from assimilated form of in- (1) "not, opposite of" + responsible. Meaning "not acting with a sense of responsibility" is from 1680s. Related: Irresponsibly.

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Online Etymology Dictionary, © 2010 Douglas Harper