life-threatening
adjective
life-threat·en·ing
ˈlīf-ˌthre-tᵊn-iŋ 
-ˌthret-niŋ
: capable of causing death : potentially fatal
a life-threatening disease/condition
The injuries are serious but not life-threatening.
Examples of life-threatening in a Sentence
Recent Examples on the Web
She was transported to the University of Cincinnati Medical Center with life-threatening injuries.
—
David Ferrara, The Enquirer, 29 July 2025
The potentially life-threatening heat and humidity are expected to continue across the eastern half of the country through Wednesday.
—Kyle Reiman, ABC News, 27 July 2025
Officers were notified of a man who had arrived in a private vehicle to a Kansas City hospital around 11:57 p.m. Sunday with a life-threatening gunshot wound.
—Kendrick Calfee, Kansas City Star, 26 July 2025
Sure, who had recently survived a life-threatening illness, hinted that more revelations were forthcoming in his memoir.
—Kevin Dolak, HollywoodReporter, 15 July 2025
See All Example Sentences for life-threatening
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David Ferrara, The Enquirer, 29 July 2025
The potentially life-threatening heat and humidity are expected to continue across the eastern half of the country through Wednesday.
—Kyle Reiman, ABC News, 27 July 2025
Officers were notified of a man who had arrived in a private vehicle to a Kansas City hospital around 11:57 p.m. Sunday with a life-threatening gunshot wound.
—Kendrick Calfee, Kansas City Star, 26 July 2025
Sure, who had recently survived a life-threatening illness, hinted that more revelations were forthcoming in his memoir.
—Kevin Dolak, HollywoodReporter, 15 July 2025
See All Example Sentences for life-threatening
Cite this Entry
“Life-threatening.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/life-threatening. Accessed 6 Aug. 2025.
Copy CitationMedical Definition
life-threatening
adjective
life-threat·en·ing
ˈlīf-ˌthret-ən-iŋ
: capable of causing death : potentially fatal
life-threatening injuries
a life-threatening allergic reaction
life-threatening arrhythmia
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