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
If your debt-to-income ratio exceeds 43%, or if you're consistently stressed about money or are using credit to cover basic expenses, your debt has likely reached unsustainable levels.
—
Angelica Leicht, CBS News, 15 Dec. 2025
What the Chiefs have been doing has been largely preposterous and unsustainable in the modern NFL, which is entirely designed to prevent dynasties and cultivate parity.
—Kansas City Star, 14 Dec. 2025
The volume of loss is devastatingly unsustainable.
—Gareth J. Fraser, The Conversation, 12 Dec. 2025
Scientists are warning that AI will create a massive, unsustainable energy demand.
—Chris Young, Interesting Engineering, 11 Dec. 2025
See All Example Sentences for unsustainable
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Angelica Leicht, CBS News, 15 Dec. 2025
What the Chiefs have been doing has been largely preposterous and unsustainable in the modern NFL, which is entirely designed to prevent dynasties and cultivate parity.
—Kansas City Star, 14 Dec. 2025
The volume of loss is devastatingly unsustainable.
—Gareth J. Fraser, The Conversation, 12 Dec. 2025
Scientists are warning that AI will create a massive, unsustainable energy demand.
—Chris Young, Interesting Engineering, 11 Dec. 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 18 Dec. 2025.
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