66 entries under fickle topic. ×

1
passionate(adjective, nervous, fierce, unstable, emotional)
1
petulant(adjective, cross, passionate, miserable, unstable)
1
willful(adjective, passionate, unstable, unpredictable, unreliable)
1
yo-yo(adjective, careless, lively, active, unstable)
0
thin-skinned(unstable, unpredictable, unreliable, erratic)
-1
waffling(adjective, irregular, changeable, variable)
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APASmart Define. (2015). mercurial thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/mercurial/thesaurus/synonyms
ChicagoSmart Define. 2015. "mercurial thesaurus" https://smartdefine.org/mercurial/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, mercurial thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/mercurial/thesaurus/synonyms>.
MLASmart Define. "mercurial thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/mercurial/thesaurus/synonyms>