Find Antonyms
sustainably Antonyms
Opposite of sustainably
Because the opposite of sustainably shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• adverb (Context 1)
In a way that avoids depleting natural resources, thereby maintaining an ecological balance.
Usage Example
"The furniture company uses only unsustainably harvested timber from certified forests."
Strongest
unsustainably
Strong
destructively
wastefully
• adverb (Context 2)
In a manner that can be maintained or continued at a steady level over a long period of time.
Usage Example
"The startup needs to grow unsustainably rather than burning through its capital too quickly."
Strongest
unsustainably
Strong
temporarily
Weak
fleetingly
Similar words to sustainably
Words similar to sustainably shift depending on context. Common synonyms include:
viably
ecologically
enduringly
durably
responsibly
lastingly
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Sustainably. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/sustainably