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subzero

British  
/ sʌbˈzɪərəʊ /

adjective

  1. (esp of temperature) lower or less than zero

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Believers dip themselves three times in water, often outside during Russia’s subzero weather.

From The Wall Street Journal ● Jun. 5, 2026

That’s partly because heat pumps work by extracting heat from outdoor air, compressing it and piping it indoors, a thermal magic trick that’s harder to perform in places with subzero winters.

From Los Angeles Times ● Mar. 1, 2026

The city is expected to be hit particularly hard with 18-24 inches of snow expected to fall in the metro area and temperatures dropping into the 20s F and subzero C.

From BBC ● Feb. 22, 2026

But amid blizzards, subzero winds, outrageous acts of state terror and every other despair lurking in The Big Dark, it’s a readily accessible, harmonious cul-de-sac in an era of rampant tone deafness.

From Salon ● Feb. 7, 2026

Polina took over the flight controls for six hours so that Valentina could rest as they flew on through the subzero Siberian night.

From "A Thousand Sisters" by Elizabeth Wein

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