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

44 entries under unsustainable topic. ×

2
agonizing(adjective, loathsome, objectionable)
2
appalling(adjective, loathsome, objectionable)
2
insufferable(adjective, loathsome, objectionable)
2
breakable(adjective, loathsome, objectionable)
2
dicky(adjective, change, unstable, doubtful, unsteady)
2
inconstant(adjective, change, fluctuate, unfixed)
2
instable(adjective, change, unbalanced, fluctuate, unfixed)
2
nonsteady(adjective, change, unbalanced, fluctuate, unfixed)
2
unmaintainable(adjective, loathsome, objectionable)
2
unsteady(adjective, change, unstable, doubtful, unfixed)
1
astable(adjective, change, unfixed)
1
erratic(adjective, change, unfixed)
1
erratical(adjective, change, unfixed)
1
fluctuating(adjective, change, unfixed)
1
fragile(adjective, change, unfixed)
1
groggy(adjective, change, unfixed)
1
infirm(adjective, change, unfixed)
1
non-resistant(adjective, change, unfixed)
1
non-steady(adjective, change, unfixed)
1
nonpersistent(adjective, change, unfixed)
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APASmart Define. (2016). sustainable thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/sustainable/thesaurus/antonyms
ChicagoSmart Define. 2016. "sustainable thesaurus" https://smartdefine.org/sustainable/thesaurus/antonyms (accessed October 2, 2026).
HarvardSmart Define 2016, sustainable thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/sustainable/thesaurus/antonyms>.
MLASmart Define. "sustainable thesaurus" 29 March 2016. Web. 2 October 2026. <https://smartdefine.org/sustainable/thesaurus/antonyms>