Source : Webster's Revised Unabridged Dictionary (1913)

Neglectful \Neg*lect"ful\, a.
   Full of neglect; heedless; careless; negligent; inattentive;
   indifferent. --Pope.

         A cold and neglectful countenance.       --Locke.

         Though the Romans had no great genius for trade, yet
         they were not entirely neglectful of it. --Arbuthnot.
   -- {Neg*lect"ful*ly}, adv. -- {Neg*lect"ful*ness}, n.

Source : WordNet®

neglectful
     adj 1: leaving vulnerable; "neglectful of her own financial
            security" [syn: {neglectful of(p)}]
     2: not showing due care or attention; "inattentive students";
        "an inattentive babysitter"; "neglectful parents" [syn: {inattentive}]
     3: failing in what duty requires; "derelict (or delinquent) in
        his duty"; "neglectful of his duties"; "remiss of you not
        to pay your bills" [syn: {derelict}, {delinquent}, {remiss}]