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.
The result is an increasingly unsustainable environment where smaller networks struggle to compete despite offering valuable, unique audiences. Kiri Masters, Forbes.com, 2 Apr. 2025 Last year, Osaka closed all but the original location of the restaurant, citing growing costs for labor and food that made his enterprise unsustainable. Miguel Otárola, Denver Post, 28 Mar. 2025 Trying to operate both models simultaneously is unsustainable, as their incentives fundamentally conflict. David Snow, Forbes, 25 Mar. 2025 This was unsustainable before the potential for the House v NCAA settlement. Karen Weaver, Forbes, 23 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 15 Apr. 2025.

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