unbreathable

adjective

un·​breath·​able ˌən-ˈbrē-t͟hə-bəl How to pronounce unbreathable (audio)
: not fit for being breathed

Examples of unbreathable 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.
But there are lots of options on the market, and rain jackets tend to get a bad rep for being unbreathable and bulky. — Olivia Avitt, Peoplemag, 1 Apr. 2024 One of their schools was closed temporarily when the air became unbreathable due to wildfire smoke. — Barry Hatton and Helena Alves, The Christian Science Monitor, 26 Sep. 2023 An alarmed glance at the near future, DreamQuil is set in a world where the air is unbreathable and most human interactions are virtual. — Sheri Linden, HollywoodReporter, 16 Mar. 2026 Mars people would live in glass domes, the outlet reported, since the planet’s air, with high levels of carbon dioxide and nitrogen, would be unbreathable. — Sunny Nagpaul, Fortune, 31 Jan. 2024 See All Example Sentences for unbreathable

Word History

First Known Use

1846, in the meaning defined above

Time Traveler
The first known use of unbreathable was in 1846

Browse Nearby Words

unbreaking
unbreathable
unbreathed
See all Nearby Words

Cite this Entry

“Unbreathable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unbreathable. Accessed 7 Jul. 2026.

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