- Noun. The state of being negligent.
- Noun. (legal) (singulare tantum) The tort whereby a duty of reasonable care was breached, causing damage: any conduct short of intentional or reckless action that falls below the legal standard for preventing unreasonable injury.
- Noun. (legal) (uncountable) The breach of a duty of care: the failure to exercise a standard of care that a reasonable person would have in a similar situation.