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

To those who favor a strategy of American global leadership, the move was callous and irresponsible, damaging U.S. credibility and squandering the relationships and soft power that Washington has built over decades. —Jennifer Lind, Foreign Affairs, 24 June 2025

Ignoring it feels not just irresponsible but inauthentic. —Michael Schneider, Variety, 23 June 2025

His threats via social media are irresponsible and dangerous. —Reader Commentary, Baltimore Sun, 20 June 2025

Will those billions of new dollars flow into the pockets of irresponsible private operators? —Teri Sforza, Oc Register, 11 June 2025