Irresponsible Synonyms

56 irresponsible synonyms include reckless, rash, careless, thoughtless, incautious, unwise, imprudent, ill-advised, ill-considered, and injudicious. Irresponsible is an adjective, and its antonyms are responsible, sensible, and serious. Here are some additional synonyms for "irresponsible" with example sentences.

Another word for Irresponsible

56 other ways to say irresponsible.

  • wild
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  • unwise  
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  • untrustworthy  
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  • unreliable  
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  • unheeding  
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  • undependable  
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  • uncaring  
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  • thoughtless  
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  • tearaway  
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  • slap-happy  
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  • slack  
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  • scatterbrained  
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  • remiss  
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  • reckless
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  • rash  
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  • precipitous  
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  • precipitate  
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  • overhasty  
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  • oscitant  
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  • negligent  
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  • neglectful  
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  • naive
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  • misguided  
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  • lax  
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  • insouciant  
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  • injudicious  
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  • incautious  
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  • inattentive  
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  • inadvertent  
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  • impulsive
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  • imprudent  
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  • impetuous  
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  • immature
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  • ill-considered  
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  • ill-advised  
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  • hot-headed  
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  • heedless  
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  • hasty  
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  • harum-scarum  
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  • hare-brained  
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  • giddy  
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  • foolish
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  • foolhardy  
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  • flighty  
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  • feather-brained  
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  • erratic  
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  • disregardful  
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  • devil-may-care  
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  • derelict  
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  • delinquent  
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  • daredevil  
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  • casual
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  • careless of one's duty  
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  • careless
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  • carefree
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  • blasé  
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Use irresponsible in a Sentence

His irresponsible actions led to the project's failure.

It's irresponsible to ignore the safety guidelines.

Leaving the lights on all night is irresponsible.

She made an irresponsible decision to skip the meeting.