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
This term is vague and can hint at an unsustainable pace or lack of boundaries.
—
Caroline Castrillon, Forbes.com, 21 July 2025
But the fact that more than 60% of their victories have required their bullpen to protect such slim margins is considered unsustainable.
—Kevin Acee, San Diego Union-Tribune, 20 July 2025
Since the dawn of the housing market downturn, Howard Miller’s sales suffered due to higher tariffs, resulting in unsustainable costs for materials and components, according to various local news outlets.
—Sofia Celeste, Footwear News, 17 July 2025
Then again, almost everything about the Chiefs these last seven years since Mahomes became QB1 has seemed unsustainable.
—Vahe Gregorian
july 16, Kansas City Star, 16 July 2025
See All Example Sentences for unsustainable
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.
Caroline Castrillon, Forbes.com, 21 July 2025
But the fact that more than 60% of their victories have required their bullpen to protect such slim margins is considered unsustainable.
—Kevin Acee, San Diego Union-Tribune, 20 July 2025
Since the dawn of the housing market downturn, Howard Miller’s sales suffered due to higher tariffs, resulting in unsustainable costs for materials and components, according to various local news outlets.
—Sofia Celeste, Footwear News, 17 July 2025
Then again, almost everything about the Chiefs these last seven years since Mahomes became QB1 has seemed unsustainable.
—Vahe Gregorian
july 16, Kansas City Star, 16 July 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 29 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share