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
That mission endured for a few years before proving unsustainable.
—
Richard Selcer, Fort Worth Star-Telegram, 15 Nov. 2025
In many parts of the eastern United States, the deer population has reached unsustainable numbers.
—Brenda Goodman, CNN Money, 14 Nov. 2025
Allowing YouTube to ingest content into its channel store is a more existential threat to programmers over the long term, as the tech giant would control the data and make running a direct-to-consumer business unsustainable.
—Dade Hayes, Deadline, 14 Nov. 2025
As our populations grew, our demands on the planet’s natural resources increased and became increasingly unsustainable.
—Jane Goodall, Time, 12 Nov. 2025
See All Example Sentences for unsustainable
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Richard Selcer, Fort Worth Star-Telegram, 15 Nov. 2025
In many parts of the eastern United States, the deer population has reached unsustainable numbers.
—Brenda Goodman, CNN Money, 14 Nov. 2025
Allowing YouTube to ingest content into its channel store is a more existential threat to programmers over the long term, as the tech giant would control the data and make running a direct-to-consumer business unsustainable.
—Dade Hayes, Deadline, 14 Nov. 2025
As our populations grew, our demands on the planet’s natural resources increased and became increasingly unsustainable.
—Jane Goodall, Time, 12 Nov. 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 Nov. 2025.
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