87 entries under weak topic. ×

9
undecided(adjective, uncertain, nervous, doubtful)
8
delicate(adjective, understanding, keen, fine)
8
doubtful(adjective, delicate, uncertain, nervous)
8
moving(adjective, free, uncertain, short)
8
slippery(adjective, smooth, delicate, uncertain)
8
untrustworthy(adjective, false, careless, loose)
7
frail(adjective, delicate, false, ill)
7
indecisive(adjective, delicate, uncertain, nervous)
7
rootless(adjective, uncertain, doubtful, unsettled)
7
unsubstantial(adjective, delicate, false, ill)
6
changing(adjective, upset, uncertain, anxious)
6
decrepit(adjective, delicate, false, ill)
6
movable(adjective, lively, active, doubtful)
6
tottery(adjective, change, strong, unsettled)
5
feeble(adjective, delicate, ill, sick)
5
fragile(adjective, delicate, false, ill)
5
insubstantial(adjective, delicate, false, short)
4
shifty(adjective, uncertain, sensitive, doubtful)
4
wishy-washy(adjective, uncertain, doubtful, hesitant)
3
fluctuant(adjective, uncertain, nervous, irregular)
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APASmart Define. (2016). unstable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unstable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, unstable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unstable/thesaurus/synonyms>.
MLASmart Define. "unstable thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/unstable/thesaurus/synonyms>