86 entries under irregular topic. ×

28
changeable(adjective, upset, change, continue, delicate)
27
inconstant(adjective, upset, change, continue, delicate)
26
fickle(adjective, change, weak, continue, delicate)
26
variable(adjective, upset, change, continue, delicate)
25
volatile(adjective, change, continue, delicate, passionate)
25
erratic(adjective, change, continue, passionate, lively)
25
unreliable(adjective, characteristic, quality, finance, banking)
24
unsettled(adjective, upset, change, weak, delicate)
23
capricious(adjective, change, continue, delicate, passionate)
21
unpredictable(adjective, upset, change, continue, passionate)
21
uncertain(adjective, upset, change, weak, continue)
19
mercurial(adjective, change, continue, delicate, passionate)
18
wavering(adjective, upset, weak, delicate, uncertain)
16
vacillating(adjective, weak, delicate, uncertain, nervous)
14
irresolute(adjective, weak, delicate, uncertain, anxious)
14
undependable(adjective, delicate, passionate, careless, foolish)
13
inconsistent(adjective, change, continue, passionate, loose)
12
fitful(adjective, careless, anxious, doubtful)
12
temperamental(adjective, change, continue, delicate, careless)
11
fluctuating(adjective, weak, lively, uncertain, active)
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APASmart Define. (2016). unstable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unstable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, unstable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unstable/thesaurus/synonyms>.
MLASmart Define. "unstable thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/unstable/thesaurus/synonyms>