noun an act or instance of negligence or carelessness.
2. negligence ·noun the quality or state of being negligent; lack of due diligence or care; omission of duty; habitual neglect; heedlessness.
3. negligence ·noun the omission of the care usual under the circumstances, being convertible with the roman culpa. a specialist is bound to higher skill and diligence in his specialty than one who is not a specialist, and liability for negligence varies acordingly.