214 entries under unpredictable topic. ×

4
fanciful(adjective, careless, unreasonable, changeable)
4
fly-by-night(adjective, careless, loose, foolish, uncertain)
4
freakish(adjective, change, continue, careless, unreasonable)
4
lubricious(adjective, smooth, careless, lively, uncertain)
4
momentary(adjective, present, short, limited)
4
questionable(adjective, open, obscure, uncertain, unsettled)
4
shifty(adjective, weak, uncertain, sensitive, doubtful)
4
transitory(adjective, present, short, limited)
3
fluctuant(adjective, weak, uncertain, nervous, irregular)
3
quicksilver(noun, lively, changeable, indecisive)
3
tense(adjective, upset, understanding, keen, fine)
2
buoyant(lively, impulsive, changeable, explosive)
2
dicey(adjective, delicate, uncertain, irregular, doubtful)
2
excitable(unreliable, fickle, erratic)
2
impetuous(unreliable, changeable, volatile, erratic)
2
irritable(adjective, understanding, keen, fine, sensible)
2
loose(adjective, free, careless, foolish, immoral)
2
makeshift(adjective, short, limited, fickle)
2
meteoric(adjective, volatile)
2
rambling(irregular, unreliable, erratic, random)
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APASmart Define. (2016). unstable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unstable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, unstable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unstable/thesaurus/synonyms>.
MLASmart Define. "unstable thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/unstable/thesaurus/synonyms>