irresponsible

[ ir-i-spon-suh-buhl ]
/ ˌɪr ɪˈspɒn sə bəl /

adjective

said, done, or characterized by a lack of a sense of responsibility: His refusal to work shows him to be completely irresponsible.
not capable of or qualified for responsibility, as due to age, circumstances, or a mental deficiency.
not responsible, answerable, or accountable to higher authority: irresponsible as a monarch.

noun

an irresponsible person.

Origin of irresponsible

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

OTHER WORDS FROM irresponsible

ir·re·spon·si·bil·i·ty, ir·re·spon·si·ble·ness, noun ir·re·spon·si·bly, adverb

Example sentences from the Web for irresponsible

British Dictionary definitions for irresponsible

irresponsible
/ (ˌɪrɪˈspɒnsəbəl) /

adjective

not showing or done with due care for the consequences of one's actions or attitudes; reckless
not capable of bearing responsibility
archaic not answerable to a higher authority for one's actions

Derived forms of irresponsible

irresponsibility or irresponsibleness, noun irresponsibly, adverb