Negligent, a.
Etymology: [F. négligent, L. negligens,p.pr. of negligere. See Neglect.]
Apt to neglect; customarily neglectful; characterized by negligence; careless; heedless; culpably careless; showing lack of attention; as, disposed in negligent order. "Be thou negligent of fame." Swift. He that thinks he can afford to be negligent is not far from being poor. Rambler.
Syn. -- Careles; heedless; neglectful; regardless; thoughtless; indifferent; inattentive; remiss.
Shades of meaning
Fernald has no entry of its own for negligent; he lists it under abstracted.
He lists it without comment; the entries above explain its neighbors.