Synonyms of neglectful

Adjective

1. inattentive, neglectful, negligent (vs. diligent)

usage: not showing due care or attention; "inattentive students"; "an inattentive babysitter"; "neglectful parents"

2. derelict, delinquent, neglectful, remiss, negligent (vs. diligent)

usage: failing in what duty requires; "derelict (or delinquent) in his duty"; "neglectful of his duties"; "remiss of you not to pay your bills"

Definition and meaning of neglectful (Dictionary)