Legal Definition
Negligence is a legal concept where one party's duty of care is breached, resulting in harm or loss. It signifies a failure to exercise the reasonable diligence expected under a legal obligation, leading to quantifiable damages.
Plain-English Translation
Imagine someone messed up because they were supposed to be careful. If you were supposed to be careful about something (like driving a car or making a promise), but you weren't careful enough, and that carelessness caused damage, then 'negligence' is the legal term for that mistake.