su·per·cool
ˌsü-pər-ˈkül 
supercooled; supercooling; supercools
: to cool below the freezing point without solidification or crystallization
: to become supercooled
: extremely cool: such as
a
: showing extraordinary reserve and self-control
b
: being the latest style or fashion
Examples of supercool in a Sentence
Adjective
the teen picked out some supercool, superexpensive sneakers
Recent Examples on the Web
Caroline Delbert, Popular Mechanics, 26 Dec. 2019
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, 7 July 2018
The key is supercooling magnetized molecules to minus 351 degrees Fahrenheit.
—Lacy Schley, Discover Magazine, 10 Nov. 2017
Andrea Lavinthal, People.com, 18 June 2025
Aimed specifically at the millennial and Gen-Z generation, who rate everything according to its Instagrammable potential, a bright, light and unremittingly supercool gallery has just opened its doors in central London.
—Emma Baxter-Wright, Forbes, 14 Oct. 2024
Steve Clark was supercool, with his scarf and everything.
—David Marchese Photograph By Mamadi Doumbouya, New York Times, 2 Feb. 2024
After all, Kingsbury is the supercool super genius who turned Johnny Manziel into Johnny Football at Texas A&M and developed Patrick Mahomes into the model postmodern quarterback at Texas Tech.
—Kevin Scarbinsky | , al, 14 Apr. 2023
At its best, the Wick franchise combines bullets, ballet and high fashion, treating the supercool assassin’s daily routine as sleekly kinetic violence.
—Michael Phillips, Chicago Tribune, 29 Dec. 2022
Some supercool research from the Max Planck Institute and ETH Zurich presented at CoRL 2022: teaching legged robots agile behaviors through direct physical demonstration.
—IEEE Spectrum, 24 Aug. 2022
But the mass extinction also nailed the coffin shut on other supercool animals, including the fabulous flying pterosaurs and the big and bitey marine reptiles known as mosasaurs.
—Gemma Tarlach, Discover Magazine, 24 May 2018
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Verb
Gizmodo reports that some whimsical scientists have supercooled their Lego bricks in order to test for heat tolerance.
—Caroline Delbert, Popular Mechanics, 26 Dec. 2019
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, 7 July 2018
The key is supercooling magnetized molecules to minus 351 degrees Fahrenheit.
—Lacy Schley, Discover Magazine, 10 Nov. 2017
Adjective
Then escape with Marvel’s supercool lineup of stars for the third iteration of the superhero team: Pedro Pascal as Mister Fantastic, Vanessa Kirby as the Invisible Woman, Joseph Quinn as Human Torch and Ebon Moss-Bachrach as the Thing.
51.
—Andrea Lavinthal, People.com, 18 June 2025
Aimed specifically at the millennial and Gen-Z generation, who rate everything according to its Instagrammable potential, a bright, light and unremittingly supercool gallery has just opened its doors in central London.
—Emma Baxter-Wright, Forbes, 14 Oct. 2024
Steve Clark was supercool, with his scarf and everything.
—David Marchese Photograph By Mamadi Doumbouya, New York Times, 2 Feb. 2024
After all, Kingsbury is the supercool super genius who turned Johnny Manziel into Johnny Football at Texas A&M and developed Patrick Mahomes into the model postmodern quarterback at Texas Tech.
—Kevin Scarbinsky | , al, 14 Apr. 2023
At its best, the Wick franchise combines bullets, ballet and high fashion, treating the supercool assassin’s daily routine as sleekly kinetic violence.
—Michael Phillips, Chicago Tribune, 29 Dec. 2022
Some supercool research from the Max Planck Institute and ETH Zurich presented at CoRL 2022: teaching legged robots agile behaviors through direct physical demonstration.
—IEEE Spectrum, 24 Aug. 2022
But the mass extinction also nailed the coffin shut on other supercool animals, including the fabulous flying pterosaurs and the big and bitey marine reptiles known as mosasaurs.
—Gemma Tarlach, Discover Magazine, 24 May 2018
Cite this Entry
“Supercool.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supercool. Accessed 31 Oct. 2025.
Copy CitationKids Definition
supercool
1 of 2 verb
su·per·cool
ˌsü-pər-ˈkül
: to cool below the freezing point while remaining liquid
supercool
2 of 2 adjective
: extremely cool: as
a
: showing extraordinary reserve and self-control
b
: being the latest style or fashion
supercool sunglasses
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