60 entries under adjective topic. ×

15
unsustainable(loathsome, unsteady, objectionable, astable)
9
non-sustainable(change, unfixed, unsustainable)
5
precarious(change, quality, dark, doubt)
5
astatic(change, unbalanced, fluctuate, unfixed)
5
unstable(change, unbalanced, fluctuate, unfixed)
4
intolerable(change, loathsome, unfixed, objectionable)
4
uncertain(change, quality, dark, doubt)
3
unendurable(loathsome, objectionable, unsustainable)
3
ambiguous(quality, dark, doubt, suspicious)
3
noxious(spoil, spot, vicious, loathsome)
3
untenable(loathsome, objectionable, unsustainable)
3
capricious(crazy, mad, nervous)
3
disputable(dark, doubt, suspicious, loathsome)
3
insupportable(loathsome, objectionable, unsustainable)
3
torturous(loathsome, objectionable, unsustainable)
3
unsound(unstable, doubtful, loathsome, unsteady)
3
unsupportable(loathsome, objectionable, unsustainable)
2
fickle(change, unstable, doubtful, fluctuate)
2
abhorrent(loathsome, objectionable, unsustainable)
2
abominable(loathsome, objectionable, unsustainable)
<123>
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>