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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.

That eases fears that the current sky-high prices and margins are unsustainable.

From Barron's • Jun. 25, 2026

Rodrigues de Freitas' death "makes the continuation of this omission unsustainable and unacceptable", the statement continued.

From BBC • Jun. 15, 2026

“The U.S. oil export machine is clearly unsustainable, though, and will incrementally slow down as commercial crude inventories are emptying and SPR has been drawn to historic lows,” he says in a note.

From The Wall Street Journal • Jun. 11, 2026

He sees a high rate of capex acceleration that, he said, is unsustainable in 2027, even if overall spending remains high.

From MarketWatch • Jun. 3, 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



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