unsustainable

adjective

un·​sus·​tain·​able ˌən-sə-ˈstā-nə-bəl How to pronounce unsustainable (audio)
: not capable of being prolonged or continued : not sustainable
unsustainable agricultural practices
unsustainable growth
unsustainability noun
unsustainably adverb
an unsustainably high rate of growth

Examples of unsustainable 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.
Both options, renting and buying in New York City, felt unsustainable to me. Jennifer Wilson, The New Yorker, 10 Mar. 2025 Financial Case for Connected Care Health care costs are rising globally, and the current trajectory is unsustainable. Dr. Fatih Mehmet Gul, Newsweek, 10 Mar. 2025 But in 2020, Park Service officials released a report arguing that sea turtle recovery costs at the seashore were unsustainable at nearly $2 million per year, and recommended reallocating funds to other projects, such as habitat restoration and beach cleanup. Smithsonian Magazine, 7 Mar. 2025 More industry factions are starting to agree that the current model is unsustainable. Bill Rosenblatt, Forbes, 6 Mar. 2025 See All Example Sentences for unsustainable

Word History

First Known Use

circa 1677, in the meaning defined above

Time Traveler
The first known use of unsustainable was circa 1677

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Cite this Entry

“Unsustainable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsustainable. Accessed 14 Mar. 2025.

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