subzero
adjective
sub·ze·ro
ˌsəb-ˈzē-(ˌ)rō 
-ˈzir-(ˌ)ō
variants
or sub-zero
1
: registering less than zero on some scale (especially the Fahrenheit scale)
subzero temperatures
2
: characterized by or suitable for subzero temperatures
subzero winters
sub-zero snow boots
Here the altitude was almost a mile and a half above sea level and there was already hard frost in the mornings. With the first storm, the mornings would be subzero.—
Tony Hillerman
Tony HillermanExamples of subzero in a Sentence
Recent Examples on the Web
Principal shooting extended over 142 days, which is very long in Hong Kong cinema, and there was also the additional physical challenge of filming in subzero temperatures in South Korea.
—Clifford Coonan, Variety, 14 May 2025
Lows are expected to be around zero in Milwaukee overnight Wednesday to Thursday and will be subzero inland, according to National Weather Service meteorologist Denny VanCleave.
—Drake Bentley, Journal Sentinel, 12 Dec. 2024
Listen to this article The Chicago area will see bitterly cold weather this week with single-digit temperatures and subzero wind chills, according to the National Weather Service.
—Adriana Pérez, Chicago Tribune, 16 Feb. 2025
As is typical, the coldest weather will be over the northern Plains and upper Midwest, where some spots may see subzero high temperatures next Sunday and Monday.
—Doyle Rice, USA TODAY, 16 Jan. 2025
See All Example Sentences for subzero
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Clifford Coonan, Variety, 14 May 2025
Lows are expected to be around zero in Milwaukee overnight Wednesday to Thursday and will be subzero inland, according to National Weather Service meteorologist Denny VanCleave.
—Drake Bentley, Journal Sentinel, 12 Dec. 2024
Listen to this article The Chicago area will see bitterly cold weather this week with single-digit temperatures and subzero wind chills, according to the National Weather Service.
—Adriana Pérez, Chicago Tribune, 16 Feb. 2025
As is typical, the coldest weather will be over the northern Plains and upper Midwest, where some spots may see subzero high temperatures next Sunday and Monday.
—Doyle Rice, USA TODAY, 16 Jan. 2025
See All Example Sentences for subzero
Cite this Entry
“Subzero.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subzero. Accessed 1 Jun. 2025.
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