150 entries under unpredictable topic. ×

12
fluctuating(adjective, free, wild, lively, active)
12
sensitive(adjective, delicate, passionate, anxious, nervous)
12
uncertain(adjective, change, continue, difficult, delicate)
12
unreliable(adjective, passionate, unstable, irregular, unsettled)
12
vacillating(adjective, unstable, irregular, unsettled, hesitant)
11
irresolute(adjective, unstable, irregular, unsettled, hesitant)
11
shifting(adjective, unstable, limited, irregular, unsettled)
11
undependable(adjective, passionate, unstable, irregular, unsettled)
10
changeful(adjective, careless, unstable, unreasonable, irregular)
10
effervescent(adjective, strong, tough, happy, careless)
10
expansive(adjective, strong, tough, happy, lively)
10
fitful(adjective, weak, free, wild, uncertain)
10
hotheaded(adjective, passionate, unstable, irritable)
10
passionate(adjective, nervous, fierce, unstable, unsettled)
10
wavering(adjective, unstable, irregular, unsettled, hesitant)
9
buoyant(adjective, strong, pleasure, tough, happy)
8
elastic(adjective, strong, hard, tough, lively)
8
fanciful(adjective, free, careless, wild, unstable)
8
irregular(adjective, lively, active, unstable, unsettled)
8
irritable(adjective, weak, delicate, passionate, anxious)
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APASmart Define. (2016). volatile thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/volatile/thesaurus/synonyms
ChicagoSmart Define. 2016. "volatile thesaurus" https://smartdefine.org/volatile/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, volatile thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/volatile/thesaurus/synonyms>.
MLASmart Define. "volatile thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/volatile/thesaurus/synonyms>