Source : Webster's Revised Unabridged Dictionary (1913)

Neglect \Neg*lect"\, v. t. [imp. & p. p. {Neglected}; p. pr. &
   vb. n. {Neglecting}.] [L. neglectus, p. p. of neglegere
   (negligere) to disregard, neglect, the literal sense prob.
   neing, not to pick up; nec not, nor (fr. ne not + -que, a
   particle akin to Goth. -h, -uh, and prob. to E. who; cf.
   Goth. nih nor) + L. legere to pick up, gather. See {No},
   adv., {Legend}, {Who}.]
   1. Not to attend to with due care or attention; to forbear
      one's duty in regard to; to suffer to pass unimproved,
      unheeded, undone, etc.; to omit; to disregard; to slight;
      as, to neglect duty or business; to neglect to pay debts.

            I hope My absence doth neglect no great designs.
                                                  --Shak.

            This, my long suffering and my day of grace, Those
            who neglect and scorn shall never taste. --Milton.

   2. To omit to notice; to forbear to treat with attention or
      respect; to slight; as, to neglect strangers.

   Syn: To slight; overlook; disregard; disesteem; contemn. See
        {Slight}.

Source : WordNet®

neglected
     adj 1: disregarded; "his cries were unheeded"; "Shaw's neglected
            one-act comedy, `A Village Wooing'"; "her ignored
            advice" [syn: {ignored}, {unheeded}]
     2: lacking a caretaker; "a neglected child"; "many casualties
        were lying unattended" [syn: {unattended}]