English Reference
verb

diminish

v.
US /dɪˈmɪnɪʃ/ UK /dɪmˈɪnɪʃ/ di·min·ish UK spelling diminishes

  1. 01 B2 Upper Intermediate Academic

    to become smaller, fewer, or less important.

    to become gradually less or smaller in size, amount, or degree. Often used intransitively to describe natural or economic trends.

    Simple

    The noise from the street began to diminish as the night went on.

    In context

    The company's profits began to diminish after the new competitor entered the market with a more efficient production model.

    Usage

    Often used without a direct object to describe a process of reduction.

  2. 02 B2 Upper Intermediate Academic

    to make something seem less important or smaller than it really is.

    to reduce the size, importance, or intensity of something. Transitive use requiring a direct object.

    Simple

    The new law will diminish the power of the local government.

    In context

    The administration sought to diminish the impact of the scandal by releasing the report late on a Friday afternoon.

    Usage

    Takes a direct object, such as 'power', 'influence', or 'impact'.

  3. 03 C1 Advanced Formal

    to treat someone or something as if they are not important or valuable.

    to lessen the reputation, authority, or dignity of a person or achievement; to disparage.

    Simple

    You should not try to diminish her success just because you are jealous.

    In context

    Critics attempted to diminish the artist's legacy by focusing solely on his early, less sophisticated works.

    Teacher's tip

    In this sense, the word is a more formal and precise alternative to 'put down' or 'belittle'.

    praiseexalt

Ageism “others” older people and diminishes their worth.

The Guardian· 4 Aug 2026

None of this diminishes the extraordinary technical skill of early anatomists.

ScienceDaily· 21 Jun 2026

Formed under the influence of both diminue (from Old French diminuer, from Latin dīminuo) and minish.

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

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