Find Synonyms
unsustainability Synonyms
Another word for unsustainability
Choosing another word for unsustainability depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
• noun (Context 1)
The quality or state of not being able to be maintained at the current rate or level over the long term, especially due to the depletion of natural, economic, or human resources.
Usage Example
"The report highlighted the long-term inviability of relying exclusively on fossil fuels for global energy production."
Strong
inviability
unviability
untenability
Weak
instability
• noun (Context 2)
The state of being unable to be defended, justified, or upheld against criticism or logical scrutiny.
Usage Example
"The legal team quickly pointed out the untenability of the witness's contradictory testimony."
Strongest
untenability
Strong
indefensibility
implausibility
Opposites of unsustainability
The opposite of unsustainability shifts depending on context. Common opposites include:
sustainability
tenability
defensibility
viability
validity
soundness
durability
stability
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Unsustainability. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/unsustainability