unsustainable

[uhn-suh-stey-nuh-buhl]

adjective

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

Other Word Forms

• unsustainably adverb

Word History and Origins

Origin of unsustainable¹

1670–80; un- ¹ + sustainable ( def. )

Example Sentences

“Our bank balance is consistently decreasing. This is inherently unsustainable,” Chandanpurkar said.

From Los Angeles Times

Cllr Mark Arnull said: "It also doesn't change our view that the use and locations of the three hotels have never been suitable for asylum accommodation and place unreasonable and unsustainable strain on local services."

From BBC

Oliver said the CCN's analysis showed "that splitting county areas into unitary councils with populations as small as 300,000 will create hundreds of millions of new unsustainable costs for local taxpayers".

From BBC

Last year, the Public Accounts Committee warned debt levels had become "unsustainable" despite curbs placed on borrowing for purely commercial aims in 2021.

From BBC

The WRU said in July the current system was failing and unsustainable and that it was looking at a more radical strategy.

From BBC

Related Words

• unsuitable 
• untenable