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
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But another reason for the selling may simply be that many AI stocks have made unsustainable moves since the end of March.
—
Jeff Marks, CNBC, 9 June 2026
The cycle eventually became unsustainable.
—Daniel Cassady, ARTnews.com, 9 June 2026
Years of questionable decisions left the company burdened with an unsustainable debt load, currently standing at over $30 billion.
—Alexander Ciccone, Oc Register, 8 June 2026
Counsell's response effectively served as a warning against overreacting to what may ultimately prove to be an unsustainable trend.
—Peter Chawaga, Forbes.com, 6 June 2026
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Jeff Marks, CNBC, 9 June 2026
The cycle eventually became unsustainable.
—Daniel Cassady, ARTnews.com, 9 June 2026
Years of questionable decisions left the company burdened with an unsustainable debt load, currently standing at over $30 billion.
—Alexander Ciccone, Oc Register, 8 June 2026
Counsell's response effectively served as a warning against overreacting to what may ultimately prove to be an unsustainable trend.
—Peter Chawaga, Forbes.com, 6 June 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 17 Jun. 2026.
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