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Unsustainable has 23 synonyms. The top synonyms for unsustainable are without foundation, unsubstantiatable, undemonstratable, undemonstrable, controvertible, without basis, unconfirmable, unverifiable and 15 more. Another word for unsustainable is without foundation. Browse the full list below.
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Frequently asked questions
What is a synonym for unsustainable?
A common synonym for unsustainable is without foundation. Other synonyms include unsubstantiatable, undemonstratable, undemonstrable, controvertible.
How many synonyms does unsustainable have?
Unsustainable has 23 synonyms listed on Thesaurasize.
What does unsustainable mean?
(adj): not sustainable
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