ULTRACOLD Synonyms: 90 Similar and Opposite Words

ultracold

adjective

Definition of ultracold

as in cryogenic

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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

Researchers from Helical Fusion and the National Institute for Fusion Science placed the test coil inside a specialized cryogenic chamber.

— Aman Tripathi, Interesting Engineering, 26 Aug. 2026
The case arose after a patient entered a fertility clinic’s cryogenic storage area and dropped a container holding frozen embryos.

— Risa Cromer, The Conversation, 17 July 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

Panic set in as people scrambled for shore, some slipping into the freezing water, others leaping between breaking chunks of ice.

— Carly Tagen-Dye, PEOPLE, 18 Sep. 2026
Since tropical hibiscus can’t survive freezing temperatures, they can be grown as annuals or overwinter indoors in cold regions.

— Karen Brewer Grossman, Southern Living, 14 Sep. 2026

Definition of freezing

Adjective

Mayor Karen Bass and billionaire developer Rick Caruso appeared together at a groundbreaking for the new Palisades Recreation Center on Tuesday, in a sign that the sometimes icy relationship between the two 2022 mayoral rivals is thawing.

— Noah Goldberg, Los Angeles Times, 16 Sep. 2026
Indeed, the polar opposite of both Number One’s icy demeanor and Chapel’s long-suffering yearning, Majel is remembered by friends and colleagues as a boisterous, brassy, take-no-prisoners presence.

— Scott Huver, HollywoodReporter, 16 Sep. 2026

Definition of icy

Adjective

Bronwyn’s mother, Muzzy, who was lambasted all of last season for being cold and arguably cruel to her daughter, is notably softer in her first scene back — though the bob is as cunty as ever.

— Tom Smyth, Vulture, 17 Sep. 2026
At Fuerte Guaicaipuro, a military facility, investigators documented detainees being confined in pit-like cells dug below ground level and subjected to cold, food deprivation and other degrading treatment.

— Antonio María Delgado, Miami Herald, 16 Sep. 2026

Definition of cold

Adjective

The international collaboration of polar scientists, headed by the European Space Agency, had in the past only looked at ice sheet melt since the 1990s based on European satellite data.

— ABC News, ABC News, 16 Sep. 2026
Indeed, the polar opposite of both Number One’s icy demeanor and Chapel’s long-suffering yearning, Majel is remembered by friends and colleagues as a boisterous, brassy, take-no-prisoners presence.

— Scott Huver, HollywoodReporter, 16 Sep. 2026

Definition of polar

Adjective

Outside of a quick first-quarter touchdown pass from Nix to Evan Engram that briefly tied the game at 7-7, Denver went completely ice-cold, stringing together four straight punts before halftime.

— Alejandro Avila OutKick, FOXNews.com, 15 Sep. 2026
Naturally, there will be bratwurst, pretzels and other Bavarian bites, plus ice-cold beer and cider.

— Linda Zavoral, Mercury News, 8 Sep. 2026

Definition of ice-cold

Adjective

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
His firm has been tracking worldwide advertising content for years, and it's seen a 30% to 40% increase in ad spend targeting warmer regions with arctic imagery.

— Christopher Elliott, USA Today, 7 Aug. 2026

Definition of arctic

Browse Nearby Words

ultraclean

ultracold

ultracompetent

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“Ultracold.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultracold. Accessed 22 Sep. 2026.

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Synonyms of ultracold

adjective

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