60 entries under erratic topic. ×

1
bubbleheaded(adjective, lively, unpredictable, unreliable, changeable)
1
cussed(adjective, passionate, unstable, unpredictable, unreliable)
1
easily upset(expression, adjective, passionate, unstable, unpredictable)
1
explosive(adjective, passionate, unstable, impulsive, unpredictable)
1
fiery(adjective, passionate, nervous, fierce, unstable)
1
froward(adjective, passionate, unstable, unpredictable, unreliable)
1
headstrong(adjective, passionate, unstable, unpredictable, unreliable)
1
hotheaded(adjective, passionate, unstable, unpredictable, unreliable)
1
hyper(adjective, passionate, unstable, unpredictable, unreliable)
1
hypersensitive(adjective, passionate, unstable, unpredictable, unreliable)
1
in bad mood(expression, adjective, idiom, passionate, unstable)
1
irritable(adjective, cross, passionate, miserable, sensitive)
1
mean(adjective, passionate, unstable, unpredictable, unreliable)
1
neurotic(adjective, passionate, nervous, unstable, emotional)
1
ornery(adjective, passionate, unstable, unpredictable, unreliable)
1
passionate(adjective, nervous, fierce, unstable, emotional)
1
petulant(adjective, cross, passionate, miserable, unstable)
1
unbalanced(unreliable, changeable, uneven, unhinged)
1
willful(adjective, passionate, unstable, unpredictable, unreliable)
0
thin-skinned(unstable, unpredictable, unreliable, fickle)
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APASmart Define. (2015). mercurial thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/mercurial/thesaurus/synonyms
ChicagoSmart Define. 2015. "mercurial thesaurus" https://smartdefine.org/mercurial/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, mercurial thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/mercurial/thesaurus/synonyms>.
MLASmart Define. "mercurial thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/mercurial/thesaurus/synonyms>