unsustainable

[ uhn-suh-stey-nuh-buhl ]

/ ˌʌn səˈsteɪ nə bəl /

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See synonyms for unsustainable on Thesaurus.com

adjective

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

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CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

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Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of unsustainable

1670–80; un-¹ + sustainable

OTHER WORDS FROM unsustainable

un·sus·tain·a·bly, adverb

Words nearby unsustainable

unsurmountable, unsurpassed, unsurprised, unsuspected, unsuspecting, unsustainable, unsustainable agriculture, unswathe, unswear, unsweetened, unswerving

How to use unsustainable in a sentence

The bet proved unsustainable, and four years later, OpenAI signed an investment deal with Microsoft.
Five ways to make AI a greater force for good in 2021|Karen Hao|January 8, 2021|MIT Technology Review
As the global population grows, this strategy is becoming increasingly unsustainable.
Scientists Just Created a Catalyst That Turns CO2 Into Jet Fuel|Edd Gent|January 3, 2021|Singularity Hub
I’ve tried several night moisturizers this year, and I always come back to this one from Tatcha, even though the price tag makes it a bit unsustainable.
The 12 best beauty and wellness products under $70 I added to my routine this year|Rachel Schallom|December 25, 2020|Fortune
SaaS solutions are replacing unsustainable manual processes.
3 ways the pandemic is transforming tech spending|Walter Thompson|December 4, 2020|TechCrunch

“That may create some good outcomes but it is an unsustainable way to ensure a distinction between for-profit and non-profit hospitals,” Grassley wrote.
Nonprofit Hospital Almost Never Gave Discounts to Poor Patients During Collections, Documents Show|by Wendi C. Thomas, MLK50: Justice Through Journalism|December 4, 2020|ProPublica
The police state system that propped up dictators from Algiers to Islamabad for decades was unsustainable.
Why’s Al Qaeda So Strong? Washington Has (Literally) No idea|Bruce Riedel|November 9, 2014|DAILY BEAST
Having a democratic state for Jews and a nondemocratic occupied state for Palestinians is unsustainable.
Bombing and Invading Gaza Is Israel’s Peace Plan|Rula Jebreal|July 19, 2014|DAILY BEAST
Moreover, the growth fueled by the MWP proved to be unsustainable.
When the Weather Went All Medieval: Climate Change, Famine, and Mass Death|Wendy Smith|June 11, 2014|DAILY BEAST
Its most far-reaching elements have proved unconstitutional, unworkable, or politically unsustainable.
How America's Harshest Immigration Law Failed|MSNBC|December 18, 2013|DAILY BEAST
Sure, Tesla investors have pushed the stock up to levels that are insanely high and perhaps unsustainable.
Tesla’s Rise Forces Other Automakers to Up Their Electric Car Game|Daniel Gross|September 25, 2013|DAILY BEAST
The use, therefore, which was made of the resolutions on Mr. Duffy's trial was false and unsustainable in every point of view.
The Felon's Track|Michael Doheny
But she was crying dreadfully; and he was proving to her some new and unsustainable theory of bacilli.
The Remarkable History of Sir Thomas Upmore, bart., M.P., formerly known as "Tommy Upmore"|R. D. Blackmore
But our soul's arches underfit into its; and so, prevent the upper arch from falling on us with unsustainable inscrutableness.
Pierre; or The Ambiguities|Herman Melville
If this is unsustainable, there is nothing finally in his Metaphysics of Will to necessitate the pessimistic conclusion drawn.
Schopenhauer|Thomas Whittaker
The classic interpretation appears still more unsustainable when we know what the primitive mourning consists in.
The Elementary Forms of the Religious Life|Emile Durkheim