Careless of one's duty, blasé, and carefree are all synonyms for irresponsible. Responsible, sensible, and serious are antonyms of irresponsible. And here are 57 another word for irresponsible.
Blasé, carefree, careless of one's duty, careless, casual, daredevil, delinquent, derelict, devil-may-care, disregardful, erratic, feather-brained, flighty, foolhardy, foolish, giddy, hare-brained, harum-scarum, hasty, heedless, hot-headed, ill-advised, ill-considered, immature, impetuous, imprudent, impulsive, inadvertent, inattentive, incautious, injudicious, insouciant, lax, misguided, naive, neglectful, negligent, oscitant, overhasty, precipitate, precipitous, rash, reckless, remiss, scatterbrained, slack, tearaway, thoughtless, uncaring, undependable, unheeding, unreliable, untrustworthy, unwise, wild, and slap-happy are all synonyms for irresponsible.
Irresponsible synonym page has a variety of synonyms that differ in length. 1 synonym with 3, and 18 letters and 2 synonyms with 4, 13, and 14 letters. 4 synonyms with 5 letters and 3 synonyms with 6, 7, and 12 letters.
9 synonyms with 8 letters and 10 synonyms with 9 letters. 7 synonyms with 10 letters and 8 synonyms with 11 letters. For a total of 55 another word for irresponsible.
His irresponsible actions led to the project's failure.
She made an irresponsible decision to skip the meeting.
Leaving the lights on all night is irresponsible.
He was reprimanded for his irresponsible behavior at work.
It's irresponsible to ignore the safety guidelines.