ultracool
adjective
ul·tra·cool
ˌəl-trə-ˈkül 
: extremely or extraordinarily cool
ultracool temperatures
At times, Miguel seemed calm, ultracool, and controlled …—
Kelly Fitzpatrick
Kelly Fitzpatrick
especially, informal
: very good or fashionable
bought an ultracool car
Dictionary Entries Near ultracool
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“Ultracool.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultracool. Accessed 3 May. 2024.
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