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

1670–80; un-1 + sustainable

unsustainably, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To unsustainably
Explore Dictionary.com
Previous Definition: unsustainable
Next Definition: unsustained
Words Near: unsustainably
More from Thesaurus.com
Synonyms and Antonyms for unsustainably
More from Reference.com
Search for articles containing unsustainably
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature