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spontaneous

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adjective spontaneous pronunciation in American English /spɑnˈteɪniəs/

Related meanings

  1. happening in a natural way without being planned or thought about

    spontaneous applause/cheers

    He was suddenly filled with tears of spontaneous emotion.

    1. a.
      used in a positive way about someone who often behaves in a natural and friendly way, without worrying about what they say or do

      Ellie’s one of the most spontaneous, fun-loving people I know.

    2. b.
      science used about chemical or biological changes or processes that happen suddenly in a natural way

      spontaneous wildfires

      spontaneous contractions of the muscles in the esophagus

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