111 entries under unstable topic. ×

9
undependable(adjective, uncertain, nervous, irregular)
8
mercurial(adjective, irregular, unsettled, unpredictable)
8
mutable(adjective, unsettled, unpredictable, unreliable)
8
shaky(adjective, weak, delicate, uncertain, nervous)
8
wobbly(adjective, weak, delicate, uncertain, nervous)
7
flighty(adjective, unsettled, changeable, unsteady)
7
insecure(adjective, weak, delicate, uncertain, nervous)
7
shifting(verb, adjective, irregular, unsettled)
7
spineless(adjective, weak, gentle, uncertain, nervous)
6
fitful(adjective, doubtful, unsettled, vague)
6
impulsive(adjective, irregular, unsettled, unpredictable)
6
inconsistent(adjective, weak, uncertain, irregular)
6
tottering(verb, adjective, weak, unsettled)
6
unpredictable(adjective, uncertain, shy, irregular)
6
varying(verb, adjective, irregular, unsettled)
5
changeful(adjective, irregular, unsettled, unpredictable)
5
irresponsible(adjective, silly, unsettled, unpredictable)
4
irregular(adjective, doubtful, unsettled, vague)
4
restless(adjective, unsettled, changeable, variable)
4
trembling(noun, verb, weak, nervous)
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APASmart Define. (2016). vacillating thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/vacillating/thesaurus/synonyms
ChicagoSmart Define. 2016. "vacillating thesaurus" https://smartdefine.org/vacillating/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, vacillating thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/vacillating/thesaurus/synonyms>.
MLASmart Define. "vacillating thesaurus" 4 March 2016. Web. 24 September 2026. <https://smartdefine.org/vacillating/thesaurus/synonyms>