life-threatening

adjective

life-threat·​en·​ing ˈlīf-ˌthre-tᵊn-iŋ How to pronounce life-threatening (audio)
-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
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.
The victim was taken with non-life-threatening injuries to a hospital, according to the police spokesperson. Emerson Clarridge, Fort Worth Star-Telegram, 3 Nov. 2025 Police confirmed in a press conference on Sunday that four people were later discharged, but two remain in a life-threatening condition. Latoya Gayle, PEOPLE, 2 Nov. 2025 Ten people were taken to the hospital by ambulance, nine of whom were in life-threatening condition, while another person later self-presented that evening. Sophie Tanno, CNN Money, 2 Nov. 2025 Loveless also gave an update on the wounded, reducing the number in life-threatening condition from nine to two. NPR, 2 Nov. 2025 See All Example Sentences for life-threatening

Word History

First Known Use

1759, in the meaning defined above

Time Traveler
The first known use of life-threatening was in 1759

Browse Nearby Words

Cite this Entry

“Life-threatening.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/life-threatening. Accessed 7 Nov. 2025.

Medical Definition

life-threatening

adjective
life-threat·​en·​ing ˈlīf-ˌthret-ən-iŋ How to pronounce life-threatening (audio)
: capable of causing death : potentially fatal
life-threatening injuries
a life-threatening allergic reaction
life-threatening arrhythmia
Last Updated: - Updated example sentences
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