26 entries under unfixed topic. ×

9
non-sustainable(adjective, change, unsustainable)
5
precarious(adjective, change, quality, dark, doubt)
5
astatic(adjective, change, unbalanced, fluctuate)
5
unstable(adjective, change, unbalanced, fluctuate)
4
intolerable(adjective, change, loathsome, objectionable)
4
uncertain(adjective, change, quality, dark, doubt)
2
fickle(adjective, change, unstable, doubtful, fluctuate)
2
dicky(adjective, change, unstable, doubtful, unsteady)
2
inconstant(adjective, change, fluctuate, unsustainable)
2
instable(adjective, change, unbalanced, fluctuate)
2
nonsteady(adjective, change, unbalanced, fluctuate)
2
unsteady(adjective, change, unstable, doubtful)
1
astable(adjective, change, unsustainable)
1
erratic(adjective, change, unsustainable)
1
erratical(adjective, change, unsustainable)
1
fluctuating(adjective, change, unsustainable)
1
fragile(adjective, change, unsustainable)
1
groggy(adjective, change, unsustainable)
1
infirm(adjective, change, unsustainable)
1
non-resistant(adjective, change, unsustainable)
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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>