irregular - definition and synonyms


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  1. 1
    separated by periods of time that are not equal

    irregular heartbeats

    His breathing had become irregular.

  2. 2
    not even, smooth, or straight in shape or appearance

    an irregular surface

    irregular patches of shade

  3. 3
    not following the rules, laws, or usual ways of doing things

    highly irregular behaviour

    1. a.
      linguistics not following the usual rules of grammar. For example, ‘eat’ is an irregular verb because its past tense is ‘ate’ and its past participle is ‘eaten’, not ‘eated’.
  4. 4
    irregular soldiers are not part of the official army of a country

derived word