irresponsible
adjective
[ ɪrɪˈspɒnsɪb(ə)l ]
• (of a person, attitude, or action) not showing a proper sense of responsibility.
• "it would have been irresponsible just to drive on"
Similar:
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,
derelict,
disregardful,
inadvertent,
oscitant,
immature,
naive,
foolish,
hare-brained,
feather-brained,
carefree,
blasé,
unreliable,
undependable,
untrustworthy,
flighty,
giddy,
scatterbrained,
erratic,
tearaway,
harum-scarum,
slap-happy,
