Synonyms of irresponsible in English:

irresponsible


See definition of irresponsible

adjective

1‘such irresponsible behaviour will not be tolerated’

SYNONYMS

reckless, rash, careless, thoughtless, incautious, unwise, imprudent, ill-advised, ill-considered, injudicious, misguided, heedless, unheeding, inattentive, hasty, overhasty, precipitate, precipitous, wild, foolhardy, impetuous, impulsive, daredevil, devil-may-care, hot-headed, negligent, delinquent, neglectful, remiss, careless of one's duty, lax, slack, uncaring, casual, insouciant

North American derelict

rare disregardful, inadvertent, oscitant

ANTONYMS

responsible, sensible

2‘if Rose wants to behave like an irresponsible teenager, that's her affair’

SYNONYMS

immature, naive, foolish, hare-brained, feather-brained

carefree, blasé

unreliable, undependable, untrustworthy, flighty, giddy, scatterbrained, erratic

British tearaway

informal harum-scarum, slap-happy

ANTONYMS

responsible, serious