[ ir-i-spon-suh-buhl ]
See synonyms for: irresponsibleirresponsibilityirresponsibly on

  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.

  1. not responsible, answerable, or accountable to higher authority: irresponsible as a monarch.

  1. an irresponsible person.

Origin of irresponsible

First recorded in 1640–50; ir-2 + responsible

Other words for irresponsible

Other words from irresponsible

  • ir·re·spon·si·bil·i·ty, ir·re·spon·si·ble·ness, noun
  • ir·re·spon·si·bly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use irresponsible in a sentence

British Dictionary definitions for irresponsible


/ (ˌɪrɪˈspɒnsəbəl) /

  1. not showing or done with due care for the consequences of one's actions or attitudes; reckless

  2. not capable of bearing responsibility

  1. archaic not answerable to a higher authority for one's actions

Derived forms of irresponsible

  • irresponsibility or irresponsibleness, noun
  • irresponsibly, 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