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extensive

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adjective American English pronunciation: extensive /ɪkˈstensɪv/
  1. 1
    very large in amount or degree

    The accident caused extensive damage to both cars.

    the restaurant's extensive wine list

  2. 2
    involving a lot of details and information

    She has an extensive knowledge of art history.

    Scientists have conducted extensive research into the causes of cancer.

  3. 3
    spreading over a large area

    the hotel's extensive grounds

    He suffered a broken wrist and extensive bruising.

derived words

extensively

 American English pronunciation: extensively  adverb

The building was extensively damaged by fire.

extensiveness

noun [uncountable]

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