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
When feed costs become unsustainable, farmers may be forced to kill or sell off the breeding cows and sows that represent the future of the food supply.
—
Aya S. Chacar, Fortune, 9 Apr. 2026
But on insurer earnings calls, the payers position themselves as white knights sounding the alarm on providers using AI to raise health care costs to an unsustainable level.
—Brittany Trang, STAT, 8 Apr. 2026
The course the state is on with the exemptions is unsustainable and wasn’t anticipated when approved more than a decade ago, said Huffman, who was first elected to the Senate in 2008.
—Fort Worth Star-Telegram, 8 Apr. 2026
The viability of a quick military victory against Iran is highly questionable, as a large-scale war would lead to a prolonged conflict with high risks of attrition, regional instability, and unsustainable costs.
—Sergio Munoz Bata, Oc Register, 7 Apr. 2026
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Aya S. Chacar, Fortune, 9 Apr. 2026
But on insurer earnings calls, the payers position themselves as white knights sounding the alarm on providers using AI to raise health care costs to an unsustainable level.
—Brittany Trang, STAT, 8 Apr. 2026
The course the state is on with the exemptions is unsustainable and wasn’t anticipated when approved more than a decade ago, said Huffman, who was first elected to the Senate in 2008.
—Fort Worth Star-Telegram, 8 Apr. 2026
The viability of a quick military victory against Iran is highly questionable, as a large-scale war would lead to a prolonged conflict with high risks of attrition, regional instability, and unsustainable costs.
—Sergio Munoz Bata, Oc Register, 7 Apr. 2026
See All Example Sentences for unsustainable
Cite this Entry
“Unsustainable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsustainable. Accessed 18 Apr. 2026.
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