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Definitions

unsustainable

[uhn-suh-stey-nuh-buhl] / ˌʌn səˈsteɪ nə bəl /
ADJECTIVE
not able to be supported in the future
Synonyms
Antonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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He added: "Today, conditions are deteriorating, and humanitarian needs remain significantly underfunded. But after more than 50 years, managing displacement indefinitely cannot be the measure of our collective ambition. The status quo is untenable, unsustainable."

From Barron's ● Sep. 25, 2026

So we should welcome AI tutors that could help reach the most vulnerable students and deliver high-quality instruction without unsustainable spending.

From The Wall Street Journal ● Sep. 11, 2026

And if even the big corporations can see that a diet of universally palatable slop is unsustainable and troubling, it’d be a shame to get left behind, comparing favorite Marvel moments with a chatbot.

From Salon ● Sep. 11, 2026

Anita Cleare, parenting expert and author of The Work/Parent Switch, said the overall cognitive drain spills over into our work lives and leads to unsustainable burnout.

From BBC ● Sep. 5, 2026

Thus language-games do not simply succeed, progress, pay, or prove their worth; they can also become unsustainable if the facts change.

From "The Invention of Science" by David Wootton



Vocabulary lists containing unsustainable


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