Synonyms of irresponsible

irresponsible

adjective

ˌir-i-ˈspän(t)-sə-bəl 

as in reckless

having or showing a lack of concern for the consequences of one's actions

it was irresponsible to go off and leave your baby unattended in an automobile

Synonyms & Similar Words

• reckless
• daring
• daredevil
• adventurous
• foolhardy
• careless
• nonchalant
• bold
• wild
• harum-scarum
• kamikaze
• impetuous
• devil-may-care
• rash
• hasty
• hell-for-leather
• audacious
• carefree
• hotheaded
• venturesome
• thoughtless
• unconcerned
• inconsiderate
• headlong
• feckless
• madcap
• inattentive
• incautious
• regardless
• unmindful
• unthinking
• heedless
• precipitate
• mindless
• blithe
• unworried
• freewheeling
• unheeding
• slaphappy
• happy-go-lucky

Antonyms & Near Antonyms

• responsible
• cautious
• careful
• circumspect
• timid
• heedful
• overcautious
• overcareful

Example Sentences

Recent Examples of irresponsible

The same topics that would earn an adult novel praise as serious and important can be viewed as gratuitous or even irresponsible in Young Adult. — Rebecca Stafford, PEOPLE, 1 Sep. 2026

The last time Harry Brook batted in a Test for England his performance was so chaotic, frenetic and, frankly, irresponsible that New Zealand’s players laughed at him. — Paul Newman, New York Times, 23 Aug. 2026

Their mother is useless and irresponsible, and Neil can’t stand her. — Abigail Van Buren, Mercury News, 18 Aug. 2026

Of course, wealthy parents can be irresponsible, and low-income parents can create loving, enriching homes. — Olga Khazan, The Atlantic, 3 Aug. 2026