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Synonyms

unsustainable

American  
[uhn-suh-stey-nuh-buhl] / ˌʌn səˈsteɪ nə bəl /

adjective

  1. not sustainable; not to be supported, maintained, upheld, or corroborated.


Other Word Forms

  • unsustainably adverb

Etymology

Origin of unsustainable

1670–80; un- 1 + sustainable ( def. )

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.

A temporary surge in productivity may occur, the authors said, but it can be unsustainable.

From MarketWatch

However, the report says this was insufficient to meet rising costs and demands, and the boards now face a significant risk that they will become financially unsustainable within the next 12 to 24 months.

From BBC

Revenues from the oil industry were also declining, she added, while the central bank has said public spending is growing at an unsustainable pace.

From Barron's

Hutchinson said she felt there was acknowledgement that heads faced an unsustainable workload, but without practical intervention it was "meaningless".

From BBC

Analysts caution that the sharp rally in retail stocks may be unsustainable, with risks of rapid decline after short-term boosts.

From Barron's