Antonyms of adj neglectful

2 senses of neglectful

Sense 1
inattentive, neglectful -- (not showing due care or attention; "inattentive students"; "an inattentive babysitter"; "neglectful parents")

INDIRECT (VIA negligent) -> diligent -- (characterized by care and perseverance in carrying out tasks; "a diligent detective investigates all clues"; "a diligent search of the files")

Sense 2
derelict, delinquent, neglectful, remiss -- (failing in what duty requires; "derelict (or delinquent) in his duty"; "neglectful of his duties"; "remiss of you not to pay your bills")

INDIRECT (VIA negligent) -> diligent -- (characterized by care and perseverance in carrying out tasks; "a diligent detective investigates all clues"; "a diligent search of the files")

Similarity of adj neglectful

2 senses of neglectful

Sense 1
inattentive, neglectful -- (not showing due care or attention; "inattentive students"; "an inattentive babysitter"; "neglectful parents")
       => negligent (vs. diligent) -- (characterized by neglect and undue lack of concern; "negligent parents"; "negligent of detail"; "negligent in his correspondence")

Sense 2
derelict, delinquent, neglectful, remiss -- (failing in what duty requires; "derelict (or delinquent) in his duty"; "neglectful of his duties"; "remiss of you not to pay your bills")
       => negligent (vs. diligent) -- (characterized by neglect and undue lack of concern; "negligent parents"; "negligent of detail"; "negligent in his correspondence")