unsustainable
adjective
un·sus·tain·able
ˌən-sə-ˈstā-nə-bəl 
: not capable of being prolonged or continued : not sustainable
unsustainable agricultural practices
unsustainable growth
Examples of unsustainable in a Sentence
Recent Examples on the Web
The latter reveals the fashion industry’s rising dependence on unsustainable synthetic materials.
—
Angela Velasquez, Sourcing Journal, 23 Sep. 2025
But Tollast argued the cost of such defense, estimated by Israel to be more than a billion dollars in that case, makes this approach unsustainable.
—Vasco Cotovio, CNN Money, 21 Sep. 2025
But companies are quietly worried that the $100,000 price tag will prove unsustainable for their hiring needs.
—Jason Ma, Fortune, 20 Sep. 2025
Using million-dollar missiles to shoot down thousand-dollar drones is economically unsustainable.
—Prabhat Ranjan Mishra, Interesting Engineering, 19 Sep. 2025
See All Example Sentences for unsustainable
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Angela Velasquez, Sourcing Journal, 23 Sep. 2025
But Tollast argued the cost of such defense, estimated by Israel to be more than a billion dollars in that case, makes this approach unsustainable.
—Vasco Cotovio, CNN Money, 21 Sep. 2025
But companies are quietly worried that the $100,000 price tag will prove unsustainable for their hiring needs.
—Jason Ma, Fortune, 20 Sep. 2025
Using million-dollar missiles to shoot down thousand-dollar drones is economically unsustainable.
—Prabhat Ranjan Mishra, Interesting Engineering, 19 Sep. 2025
See All Example Sentences for unsustainable
Cite this Entry
“Unsustainable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsustainable. Accessed 4 Oct. 2025.
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