Synonyms|53Antonyms|63|Broader|28Narrower|161Related|425

44 entries under unsustainable topic. ×

9
non-sustainable(adjective, change, unfixed)
5
precarious(adjective, change, quality, dark, doubt)
5
astatic(adjective, change, unbalanced, fluctuate, unfixed)
5
unstable(adjective, change, unbalanced, fluctuate, unfixed)
4
intolerable(adjective, change, loathsome, unfixed, objectionable)
4
unbearable(adverb, awful, horrible)
4
uncertain(adjective, change, quality, dark, doubt)
3
tormenting(verb, spoil, foul)
3
unendurable(adjective, loathsome, objectionable)
3
noxious(adjective, spoil, spot, vicious, loathsome)
3
untenable(adjective, loathsome, objectionable)
3
disputable(adjective, dark, doubt, suspicious, loathsome)
3
insupportable(adjective, loathsome, objectionable)
3
torturous(adjective, loathsome, objectionable)
3
unsound(adjective, unstable, doubtful, loathsome, unsteady)
3
unsupportable(adjective, loathsome, objectionable)
2
fickle(adjective, change, unstable, doubtful, fluctuate)
2
abhorrent(adjective, loathsome, objectionable)
2
abominable(adjective, loathsome, objectionable)
2
acute(adjective, loathsome, objectionable)
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APASmart Define. (2016). sustainable thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/sustainable/thesaurus/antonyms
ChicagoSmart Define. 2016. "sustainable thesaurus" https://smartdefine.org/sustainable/thesaurus/antonyms (accessed October 1, 2026).
HarvardSmart Define 2016, sustainable thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/sustainable/thesaurus/antonyms>.
MLASmart Define. "sustainable thesaurus" 29 March 2016. Web. 1 October 2026. <https://smartdefine.org/sustainable/thesaurus/antonyms>