28
capricious(adjective, change, continue, unusual, passionate)
27
unstable(adjective, upset, change, continue, passionate)
24
uncertain(noun, adjective, upset, change, continue)
24
erratic(adjective, change, continue, unusual, passionate)
22
unreliable(adjective, passionate, careless, foolish, unstable)
17
fickle(adjective, change, continue, passionate, careless)
16
inconsistent(adjective, change, continue, passionate, strange)
14
inconstant(adjective, upset, change, continue, careless)
14
doubtful(noun, adjective, uncertain, unstable, shy)
14
irregular(adjective, strange, lively, uncertain, active)
14
undependable(adjective, passionate, careless, foolish, unstable)
14
unforeseeable(adjective, doubtful, vague, hesitant, changeable)
14
unsettled(adjective, upset, uncertain, anxious, unstable)
13
mercurial(adjective, change, continue, passionate, careless)
13
variable(adjective, upset, change, continue, passionate)
13
unsure(noun, adjective, loose, uncertain, unstable)
12
changeable(adjective, upset, change, continue, passionate)
12
unsteady(adjective, upset, change, weak, continue)
12
chancy(noun, adjective, uncertain, unstable, changeable)
12
whimsical(adjective, change, continue, careless, unstable)
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APASmart Define. (2015). unpredictable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unpredictable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unpredictable thesaurus" https://smartdefine.org/unpredictable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unpredictable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unpredictable/thesaurus/synonyms>.
MLASmart Define. "unpredictable thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/unpredictable/thesaurus/synonyms>