70 entries under temperamental topic. ×

37
irregular(adjective, character, extraordinary, unusual, strange)
36
fickle(adjective, change, continue, cross, passionate)
36
capricious(adjective, change, continue, cross, unusual)
32
unpredictable(adjective, change, continue, unusual, passionate)
28
inconstant(adjective, change, continue, careless, lively)
28
unstable(adjective, change, continue, passionate, lively)
27
changeable(adjective, change, continue, cross, passionate)
25
fitful(adjective, cross, melancholy, miserable, unstable)
24
volatile(adjective, change, continue, passionate, lively)
23
mercurial(adjective, change, continue, cross, passionate)
18
variable(adjective, change, continue, passionate, lively)
14
flighty(adjective, cross, careless, lively, melancholy)
13
fluctuating(adjective, lively, active, unstable, irregular)
8
impulsive(adjective, cross, unusual, careless, lively)
8
moody(noun, adjective, careless, unstable, unreasonable)
6
quicksilver(adjective, lively, unpredictable, changeable, indecisive)
4
mobile(adjective, weak, lively, active, unstable)
3
gaga(adjective, careless, lively, active, unstable)
3
mad(adjective, unusual, wild, strange, lively)
3
ticklish(adjective, change, continue, passionate, careless)
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APASmart Define. (2016). erratic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/erratic/thesaurus/synonyms
ChicagoSmart Define. 2016. "erratic thesaurus" https://smartdefine.org/erratic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, erratic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/erratic/thesaurus/synonyms>.
MLASmart Define. "erratic thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/erratic/thesaurus/synonyms>