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Definition of ultracool

ultracool

/ˌʌl.trəˈkuːl/
ul · tra · cool
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ultracool Lexical Profile

ultracool Game Scores & Validity

• adjective

1

Extremely fashionable, stylish, or impressive; exceptionally calm and composed.

Example

"The boutique hotel featured an ultracool lounge with minimalist furniture and ambient lighting."

2

Having an extremely low temperature, especially in physics and astronomy regarding matter cooled to near absolute zero or low-mass stars.

Example

"Astronomers discovered several earth-sized planets orbiting an ultracool dwarf star."

Synonyms
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Antonyms
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• Rhymes for ultracool

• Nearby Words

ultracompact
ultraconservative
ultraconvenient
ultracool
ultraefficient
ultraexclusive
ultraexpensive

Cite this Entry

Wordmom. (2026). Definition of Ultracool. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/ultracool
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