129 entries under unstable topic. ×

11
unsubstantial(adjective, weak, slight, thin, delicate)
10
cowardly(adjective, uncertain, nervous, shy)
10
doubtful(adjective, weak, delicate, uncertain, anxious)
10
trembling(adjective, gentle, nervous, humble)
10
unsafe(adjective, delicate, uncertain, ill)
10
vacillating(adjective, weak, delicate, uncertain, nervous)
9
faltering(adjective, weak, delicate, uncertain)
9
fearful(adjective, upset, weak, excited, uncertain)
9
iffy(adjective, delicate, uncertain, nervous)
9
perilous(adjective, adverb, upset, open, delicate)
9
rocky(adjective, weak, delicate, uncertain)
9
tottery(adjective, change, strong, flexible)
9
unsettled(adjective, upset, weak, delicate, uncertain)
8
apprehensive(adjective, upset, informal, excited, uncertain)
8
dangerous(adjective, adverb, open, delicate, uncertain)
8
shaking(adjective, upset, excited, anxious, nervous)
8
undependable(adjective, uncertain, nervous, feeble)
8
wavering(adjective, upset, weak, delicate, uncertain)
7
delicate(adjective, weak, slight, thin, uncertain)
7
insubstantial(adjective, weak, slight, thin, delicate)
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APASmart Define. (2015). shaky thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/shaky/thesaurus/synonyms
ChicagoSmart Define. 2015. "shaky thesaurus" https://smartdefine.org/shaky/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, shaky thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/shaky/thesaurus/synonyms>.
MLASmart Define. "shaky thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/shaky/thesaurus/synonyms>