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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.

“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

She quickly acknowledged that the cost of hotel and motel rooms was financially unsustainable and would require the city to purchase its own temporary housing facilities.

From Los Angeles Times • May 27, 2026

In Massachusetts, members of the Hampshire County trust determined that the financial burdens were unsustainable.

From The Wall Street Journal • May 23, 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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