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impaired

adj. · n.
US //ˌɪmˈpɛɹd// UK //ɪmpˈeəd// im·paired
  1. 1 weakened or damaged (adj.)
    B2 Upper Intermediate Formal

    damaged or weakened so that it does not work perfectly.

    rendered less effective, weakened, or damaged in function or quality.

    Example

    His vision was impaired after the accident, so he had to wear glasses.

    Example

    The patient's cognitive functions were significantly impaired by the stroke, necessitating a long-term rehabilitation plan focused on speech and memory.

    Usage

    Often used in medical or technical contexts to describe senses like hearing or vision.
  2. 2 drunk or high (adj.)
    C1 Advanced Formal Technical Law

    not able to think or act clearly because of alcohol or drugs.

    functioning at a diminished capacity due to the consumption of alcohol or controlled substances.

    Example

    The police stopped the driver because he appeared to be impaired.

    Example

    Operating heavy machinery while impaired by prescription medication is strictly prohibited under the current safety guidelines.

    Teacher's tip

    This is a formal and legal way to say someone is drunk or high; it is the standard term used in police reports and courtrooms.
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  1. 3 a legal charge (n.)
    C2 Proficiency American English Technical Law

    a crime where someone drives a car while they are drunk or high.

    a criminal offence involving the operation of a motor vehicle while under the influence of intoxicants.

    Example

    He lost his license after being charged with an impaired.

    Example

    The defendant faced a mandatory minimum sentence after his second impaired in three years.

    Usage

    Used as a countable noun primarily in North American legal contexts.

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