128 entries under shaky topic. ×

7
hazardous(adjective, delicate, wild, uncertain, doubtful)
7
indecisive(adjective, weak, delicate, uncertain, nervous)
7
tricky(adjective, understanding, keen, fine, difficult)
7
unsubstantial(adjective, weak, delicate, false, ill)
6
decrepit(adjective, weak, delicate, false, ill)
6
iffy(adjective, delicate, uncertain, nervous, irregular)
6
indefinite(adjective, loose, uncertain, doubtful, unsettled)
5
demented(false, foolish, unreasonable, ill)
5
feeble(adjective, weak, delicate, ill, sick)
5
fragile(adjective, weak, delicate, false, ill)
5
insane(false, foolish, mad, unreasonable, ill)
5
insubstantial(adjective, weak, delicate, false, short)
5
suspect(adjective, doubtful, uneven, unbalanced)
5
touchy(adjective, understanding, keen, fine, sensible)
4
agitated(adjective, upset, rough, violent, anxious)
4
ambiguous(adjective, delicate, uncertain, doubtful, unsettled)
4
borderline(adjective, delicate, uncertain, nervous, doubtful)
4
chancy(adjective, delicate, uncertain, doubtful, unsettled)
4
deranged(false, mad, ill, insane)
4
questionable(adjective, open, obscure, uncertain, unsettled)
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APASmart Define. (2016). unstable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unstable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, unstable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unstable/thesaurus/synonyms>.
MLASmart Define. "unstable thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/unstable/thesaurus/synonyms>