follow Dictionary.com

Capitol vs. capital? What's the difference?

unsustainable

[uhn-suh-stey-nuh-buh l] /ˌʌn səˈsteɪ nə bəl/
adjective
1.
not sustainable; not to be supported, maintained, upheld, or corroborated.
Origin of unsustainable
1670-1680
1670-80; un-1 + sustainable
Related forms
unsustainably, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for unsustainable
Contemporary Examples
Historical Examples
Contemporary definitions for unsustainable
adjective

not able to be maintained or supported in the future, esp. without causing damage or depletion of a resource

Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
Cite This Source
Word Origin and History for unsustainable
adj.

1670s, from un- (1) "not" + sustainable.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for unsustainable

Few English speakers likely know this word

Word Value for unsustainable

0
21
Scrabble Words With Friends

Nearby words for unsustainable