67 entries under unpredictable topic. ×

1
blowing hot and cold(expression, idiom, lively, changeable)
1
bubbleheaded(lively, changeable, temperamental, resilient)
1
buoyant(lively, impulsive, changeable, resilient)
1
elastic(lively, impulsive, changeable, temperamental)
1
erratic(lively, impulsive, changeable, temperamental)
1
expansive(lively, impulsive, changeable, temperamental)
1
fickle(lively, impulsive, changeable, temperamental)
1
flip(lively, changeable, resilient)
1
fluctuating(lively, changeable, temperamental, resilient)
1
gay(lively, impulsive, changeable, resilient)
1
impulsive(adjective, lively, thoughtless, changeable)
1
irregular(lively, changeable, uneven, temperamental)
1
irrepressible(lively, changeable, temperamental, resilient)
1
lighthearted(lively, changeable, temperamental, resilient)
1
lively(impulsive, changeable, resilient, explosive)
1
lubricious(lively, impulsive, changeable, temperamental)
1
mercurial(adjective, lively, impulsive, changeable)
1
mobile(lively, changeable, temperamental, resilient)
1
movable(lively, changeable, temperamental, resilient)
1
quicksilver(lively, changeable, temperamental)
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APASmart Define. (2015). up-and-down thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/up-and-down/thesaurus/synonyms
ChicagoSmart Define. 2015. "up-and-down thesaurus" https://smartdefine.org/up-and-down/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, up-and-down thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/up-and-down/thesaurus/synonyms>.
MLASmart Define. "up-and-down thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/up-and-down/thesaurus/synonyms>