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
But organizers said in a message on the festival’s website that the board determined the costs of putting on the festival were unsustainable.
—
Bay City News Service, Mercury News, 10 May 2025
The status quo trajectory is unsustainable and has allowed unacceptable risks to fester.
—John Feng
shane Croucher, MSNBC Newsweek, 9 May 2025
The government has tried and failed to modernize the system for decades, and last September, the nonpartisan Government Accountability Office found that 51 of the FAA’s 138 air traffic control systems are unsustainable.
—Danielle Chemtob, Forbes.com, 9 May 2025
The Lakers’ No. 1 defense over a 24-game stretch from mid-January through early March was fool’s gold, with Hayes’ play being the most unsustainable part.
—The Athletic Nba Staff, New York Times, 1 May 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.
Bay City News Service, Mercury News, 10 May 2025
The status quo trajectory is unsustainable and has allowed unacceptable risks to fester.
—John Feng
shane Croucher, MSNBC Newsweek, 9 May 2025
The government has tried and failed to modernize the system for decades, and last September, the nonpartisan Government Accountability Office found that 51 of the FAA’s 138 air traffic control systems are unsustainable.
—Danielle Chemtob, Forbes.com, 9 May 2025
The Lakers’ No. 1 defense over a 24-game stretch from mid-January through early March was fool’s gold, with Hayes’ play being the most unsustainable part.
—The Athletic Nba Staff, New York Times, 1 May 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 17 May. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share