ULTRACOLD Synonyms: 90 Similar and Opposite Words

ultracold

adjective

Definition of ultracold

as in cryogenic

Related Words

Relevance

Dissimilar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of ultracold There, the trio tinkered with ultracold electronics to show that unruly quantum effects could be made macroscopic and controlled. — Dan Garisto, Scientific American, 7 Oct. 2025 The biggest challenge is that the property was observed at ultracold temperatures of about 60 kelvins (-351 °F/-213 °C). — Abhimanyu Ghoshal, New Atlas, 13 June 2025 Its infrared sensors, its ultracold location in space, and its sunshield — which blocks the light of the sun, moon and Earth — are uniquely suited to resolve the first galaxies and their stars. — Rebecca Boyle, Quanta Magazine, 9 Oct. 2024 The number of ultracold atoms in the resulting Bose-Einstein condensate was measured and fed back to the player as a score. — IEEE Spectrum, 22 Oct. 2019 See All Example Sentences for ultracold

Recent Examples of Synonyms for ultracold

Adjective

Storing these propellants in their gaseous forms retains them in a less dense form but avoids the complexity of storage at cryogenic temperatures.

— Eric Berger, ArsTechnica, 3 Nov. 2026
The head of the facility, Rowan LaFontaine (Lexa Doig), wants to put him in a cryogenic chamber, but the government has other plans for him.

— Sergio Pereira, Space.com, 29 Oct. 2026

Definition of cryogenic

Adjective

Drawing on his time doing drag in Toronto, Shatford paid homage to the dedication needed to dress up in subzero temperatures.

— Violet Goldstone, Footwear News, 5 June 2026
As the episode makes clear, fishing this far north comes with brutal conditions, including shallow waters, towering waves and subzero temperatures.

— Deirdre Durkan, PEOPLE, 7 May 2026

Definition of subzero

Adjective

Despite the freezing temperatures, agents confiscated the migrants’ coats and refused to give them blankets.

— Francisco Cantú, New Yorker, 2 Nov. 2026
The beautiful, bright, and incredibly chic three-story abode leads up to a private roof terrace covered in pines with a freezing plunge pool at its center, and an unassuming wooden door that leads to a private sauna.

— Condé Nast, Condé Nast Traveler, 22 Oct. 2026

Definition of freezing

Adjective

After starting in the middle of the night, candidates get about four hours of sleep over the next five days and complete tasks like carrying logs, launching boats into crashing waves, lying in cold ocean water and running around 200 miles.

— James LaPorta, CBS News, 5 Nov. 2026
Doing so before the plant is fully dormant can encourage new growth, which will be vulnerable to cold damage when cooler weather arrives.

— Abby Monteil, The Spruce, 4 Nov. 2026

Definition of cold

Adjective

This indirectly influences the polar jet stream, a band of wind that circles the entire polar region in the troposphere—the lowest layer of the atmosphere, where most of our weather happens.

— Jackie Flynn Mogensen, Scientific American, 4 Nov. 2026
Antarctica Silversea’s first ship reimagined for polar pursuits, Silver Cloud strikes a commendable balance between expedition thrills and luxury amenities.

— Condé Nast, Condé Nast Traveler, 31 Oct. 2026

Definition of polar

Adjective

Dropping in a light arctic gray and black colorway first, the sneaker is aesthetically defined by an abstract undulating design.

— Jaden Thompson, Footwear News, 19 Oct. 2026
Justin Sauers, the tower’s operator, opened a door in the cabin to greet Donnelly, releasing an arctic blast.

— Robert Sullivan, New Yorker, 17 Aug. 2026

Definition of arctic

Browse Nearby Words

ultraclean

ultracold

ultracompetent

See all Nearby Words

Cite this Entry

Style

“Ultracold.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultracold. Accessed 10 Nov. 2026.

Copy Citation

Synonyms of ultracold

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

defer

Popular in Grammar & Usage

How to Use 'Who' vs. 'Whom'

31 Useful Rhetorical Devices

More Commonly Misspelled Words

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

Popular in Wordplay

Great Big List of Beautiful and Useless Words, Vol. 5

9 Words That Sound Like Insults But Aren't

The Longest Long Words List

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

How to Use 'Who' vs. 'Whom'

Great Big List of Beautiful and Useless Words, Vol. 5

9 Words That Sound Like Insults But Aren't

Games & Quizzes