as in unsupportable
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Recent Examples of unsustainable
Decades of anti-nuclear protests in Germany, stoked by past accidents, had pressured successive governments to end using a technology that critics saw as unsafe and unsustainable.
—
Vladimir Isachenkov, Fortune, 23 Apr. 2026
This makes methanol use unsustainable in the long run, prompting scientists to seek simpler, more energy-efficient ways to synthesize it.
—Ameya Paleja, Interesting Engineering, 23 Apr. 2026
In jewelry, new doesn’t always mean unsustainable.
—Laurie Brookins, HollywoodReporter, 22 Apr. 2026
Decades of anti-nuclear protests in Germany, stoked by past accidents, had pressured successive governments to end using a technology that critics saw as unsafe and unsustainable.
—ABC News, 22 Apr. 2026
See All Example Sentences for unsustainable
Vladimir Isachenkov, Fortune, 23 Apr. 2026
This makes methanol use unsustainable in the long run, prompting scientists to seek simpler, more energy-efficient ways to synthesize it.
—Ameya Paleja, Interesting Engineering, 23 Apr. 2026
In jewelry, new doesn’t always mean unsustainable.
—Laurie Brookins, HollywoodReporter, 22 Apr. 2026
Decades of anti-nuclear protests in Germany, stoked by past accidents, had pressured successive governments to end using a technology that critics saw as unsafe and unsustainable.
—ABC News, 22 Apr. 2026
See All Example Sentences for unsustainable
Recent Examples of Synonyms for unsustainable
Adjective
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Currah’s opinion piece is wrong on the facts, the law, and the science, and reaches unsupportable conclusions.—
Paisley Currah,
The New York Review of Books,
18 Dec. 2025
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The venerable but troubled outlet has been for sale since its previous owners ran up unsupportable debts and were removed in 2023.—
Tom Chivers,
semafor.com,
24 Nov. 2025
Adjective
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Researchers contend with a patchwork of numbers Figures the administration has released are inconsistent and unverifiable.—
Rebecca Santana,
Los Angeles Times,
16 Mar. 2026
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Figures the administration has released are inconsistent and unverifiable.—
ABC News,
ABC News,
15 Mar. 2026
Adjective
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Researchers already had reason to believe that the pigeonhole principle can’t be proved from the axioms of PV1 alone, so Li, Chen and Oliveira’s results imply that their other equivalent theorems are also likely unprovable in PV1.—
Ben Brubaker,
Quanta Magazine,
1 Dec. 2025
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Given that many of Epstein’s correspondents are redacted and that threads start and stop randomly, many of the emails are perfect building blocks for constructing plausible but ultimately unprovable narratives.—
Charlie Warzel,
The Atlantic,
14 Nov. 2025
Cite this Entry
“Unsustainable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsustainable. Accessed 3 May. 2026.
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