English Reference
adjective

negligent

adj.
US /ˈnɛɡɫədʒənt/ UK /nˈɛɡlɪdʒənt/ neg·li·gent

  1. 01 C1 Advanced Formal

    failing to take proper care in doing something.

    failing to exercise the care that a reasonably prudent person would exercise in like circumstances.

    Simple

    The council was negligent in maintaining the safety of the local playground.

    In context

    The report concluded that the company had been negligent in its safety procedures, leading directly to the avoidable accident at the plant.

    carelessremissheedless
  2. 02 C1 Advanced TechnicalFormal Law

    responsible for a mistake or accident because you did not do your job carefully enough.

    culpable due to a breach of a duty of care; used to establish liability in civil law.

    Simple

    The court found the driver negligent and ordered him to pay for the damages.

    In context

    To succeed in a claim for damages, the plaintiff must prove that the defendant's conduct was negligent and caused the resulting injury.

    Usage

    Often followed by the preposition 'in' plus a gerund, or used as a predicative adjective after 'find' in legal contexts.

The officials argued that the facility was negligent in caring for the animals and that the crocodiles therefore posed a public safety risk that justified the violent measures.

The Conversation· 26 Aug 2026

From Middle English necligent, negligent, from Old French negligent, from Latin negligēns.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin negligēns
Level C1 · Advanced
Frequency Frequent
Updated