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REFERENCE

inadequate

adj. · n.
US //ˌɪˈnædəˌkweɪt// UK //ɪnˈædɪkwət// in·ad·e·quate
  1. 1 not enough in amount (adj.)
    B2 Upper Intermediate

    not enough of something to meet a need.

    insufficient in quantity or quality to satisfy a particular requirement or purpose.

    Example

    The food supplies were inadequate for the large number of people at the camp.

    Example

    The existing infrastructure proved woefully inadequate for the sudden influx of seasonal workers, leading to significant delays in local transport.

    Usage

    Often used with the preposition 'for' to indicate the purpose being failed.

  2. 2 not good enough (adj.)
    B2 Upper Intermediate

    lacking the quality or ability that is needed for a task.

    failing to reach an expected or required standard of quality or competence.

    Example

    He felt inadequate in his new job because he didn't understand the software.

    Example

    Despite her extensive experience, she felt strangely inadequate when asked to lead the international delegation through the complex legal negotiations.

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  1. 3 an incapable person (n.)
    C2 Proficiency Formal

    a person who is not able to deal with the demands of life or a specific situation.

    a person who lacks the necessary emotional or mental stability to cope with everyday life or social requirements.

    Example

    The novel describes a man who sees himself as a social inadequate.

    Example

    The report suggested that the facility was housing several social inadequates who required more intensive psychological support than the staff could provide.

    Usage

    Usually functions as a countable noun, often in psychological or sociological contexts.

Origin

From in- + adequate.

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