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unsustainable

[uhn-suh-stay-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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This allowed them to determine which fishmeal plants were connected to ships engaged in illegal or unsustainable fishing.

From Los Angeles Times ● Oct. 9, 2026

Separate IRA subsidies for Part D plans end after 2029, which “raises significant cause for concern around unsustainable premium increases and continued market exits in the near-term,” she wrote.

From The Wall Street Journal ● Oct. 4, 2026

Molango said Palmer's recent withdrawal from the England squad highlighted a match calendar that is unsustainable and has become the "survival of the fittest".

From BBC ● Sep. 29, 2026

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

In any society built on institutionalized racism, race-mixing doesn’t merely challenge the system as unjust, it reveals the system as unsustainable and incoherent.

From "Born a Crime: Stories from a South African Childhood" by Trevor Noah



Vocabulary lists containing unsustainable


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