failing in what duty requires; "derelict (or delinquent) in his duty"; "neglectful of his duties"; "remiss of you not to pay your bills" पर्याय: derelict, delinquent, remiss,
not showing due care or attention; "inattentive students"; "an inattentive babysitter"; "neglectful parents" पर्याय: inattentive,