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cool - definition and synonyms


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adjective cool pronunciation in American English /kul/
Word Forms
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  1. 1
    rather cold, often in a pleasant way

    Tomorrow it will be cloudy and cool everywhere.

    The night air was still and beautifully cool.

    The water was wonderfully cool and refreshing.

    Store the wine in a cool dry place.

    Synonyms and related words
    1. b.
      cool clothes prevent you from feeling too hot

      He put on a cool cotton shirt and a pair of shorts.

    2. c.
      cool colors, such as white and blue, give an idea of cold instead of heat

      The place was painted in a cool glossy white.

  2. 2
    impressive because of being fashionable or attractive

    one of America’s coolest young designers

    It’s not considered cool to wear a helmet.

    1. a.
      used for emphasizing how good someone or something is

      I met this really cool girl last night.

      Cara’s taking a really cool art class at the community college.

    2. b.
      spoken used for agreeing to something or saying that something would be convenient

      “We could go to a movie.” “Cool.”

      Any time after five would be cool.

  3. 3
    calm and relaxed

    a cool and calm atmosphere

    her cool handling of the situation

    her cool way of handling the situation

    Synonyms and related words
  4. 5
    [only before noun] informal used with an amount of money for emphasizing how large it is

    He ended up with a cool $50,000.

derived word


noun [uncountable]

We sat and enjoyed the coolness of the shade.

There was a definite coolness between the two men.


sea lion

in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

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an electric skateboard

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