Thesaurus.com
Dictionary.com
Showing results for unsustainable. Search instead for sourcing sustainable.
Definitions

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.

See Examples For:

A spokesperson for Queen's said the university was "operating in a challenging financial environment and has consistently highlighted that the current higher education funding model, and continued budget uncertainty, are unsustainable".

From BBC ● Oct. 20, 2026

Seafood has been slower to face such scrutiny, though, as the world leans further into aquaculture, that may change, she said, particularly if more governments begin restricting imports tied to illegality or unsustainable practices.

From Los Angeles Times ● Oct. 9, 2026

"This is unsustainable, not just for households but also for the market as a whole," said Adam Scorer, chief executive of fuel poverty charity National Energy Action.

From BBC ● Sep. 29, 2026

“The current costs are unsustainable and are already having significant, negative consequences on research productivity and graduate education more broadly.”

From The Wall Street Journal ● Sep. 27, 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

Random Word

Spin the wheel and learn a new word!

Get a word

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember new words for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com