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.