2
fickle(adjective, change, unstable, doubtful, fluctuate)
2
abhorrent(adjective, loathsome, objectionable, unsustainable)
2
abominable(adjective, loathsome, objectionable, unsustainable)
2
acute(adjective, loathsome, objectionable, unsustainable)
2
agonizing(adjective, loathsome, objectionable, unsustainable)
2
appalling(adjective, loathsome, objectionable, unsustainable)
2
insufferable(adjective, loathsome, objectionable, unsustainable)
2
breakable(adjective, loathsome, objectionable, unsustainable)
2
dicey(adjective, quality, doubt, unstable, doubtful)
2
dicky(adjective, change, unstable, doubtful, unsteady)
2
dubious(adjective, dark, doubt, unstable, doubtful)
2
environmentally unfriendly(expression, adjective, environment, spoil, spot)
2
inconstant(adjective, change, fluctuate, unfixed, unsustainable)
2
instable(adjective, change, unbalanced, fluctuate, unfixed)
2
nonsteady(adjective, change, unbalanced, fluctuate, unfixed)
2
out-of-balance(adjective, unsteady, sandy, nonstable)
2
unmaintainable(adjective, loathsome, objectionable, unsustainable)
2
unsteady(adjective, change, unstable, doubtful, unfixed)
1
astable(adjective, change, unfixed, unsustainable)
1
contaminating(adjective, spoil, spot, vicious, maculate)
10 years ago|1.8k views|share |citing 
APASmart Define. (2016). sustainable thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/sustainable/thesaurus/antonyms
ChicagoSmart Define. 2016. "sustainable thesaurus" https://smartdefine.org/sustainable/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2016, sustainable thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/sustainable/thesaurus/antonyms>.
MLASmart Define. "sustainable thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/sustainable/thesaurus/antonyms>