su·​per·​cool | \ ˌsü-pər-ˈkül How to pronounce supercool (audio) \
supercooled; supercooling; supercools

Definition of supercool

 (Entry 1 of 2)

transitive verb

: to cool below the freezing point without solidification or crystallization



Definition of supercool (Entry 2 of 2)

: extremely cool: such as
a : showing extraordinary reserve and self-control
b : being the latest style or fashion

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Synonyms & Antonyms for supercool

Synonyms: Adjective

Antonyms: Adjective

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Examples of supercool in a Sentence

Adjective the teen picked out some supercool, superexpensive sneakers
Recent Examples on the Web: Verb Like many hibernating insects, overwintering mosquitoes depend on supercooling, a process by which an animal has the ability to rid its body fluids of impurities that would trigger the formation of ice. Ned Rozell, Anchorage Daily News, "Only female mosquitoes bother us (and other facts about the insects Alaskans love to hate)," 7 July 2018 The key is supercooling magnetized molecules to minus 351 degrees Fahrenheit. Lacy Schley, Discover Magazine, "Degrees of Separation," 10 Nov. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'supercool.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of supercool


1904, in the meaning defined at transitive sense


1962, in the meaning defined above

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Statistics for supercool

Time Traveler for supercool

The first known use of supercool was in 1904

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More from Merriam-Webster on supercool

Thesaurus: All synonyms and antonyms for supercool

Nglish: Translation of supercool for Spanish Speakers

Comments on supercool

What made you want to look up supercool? Please tell us where you read or heard it (including the quote, if possible).


to engage in dissolute behavior

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