7
waspish(adjective, irritable, touchy, volatile, fiery)
6
cantankerous(adjective, delicate, cross, unpleasant, miserable)
6
contemptuous(adjective, arrogant, insolent)
6
crusty
6
curmudgeonly
6
explosive(adjective, impulsive, unpredictable, unreliable, erratic)
6
high-strung(adjective, nervous, emotional, restless, unreliable)
6
hypersensitive(adjective, delicate, sensitive, unpredictable, unreliable)
6
passionate(adjective, moving, nervous, fierce, emotional)
6
short
6
splenetic(adjective, delicate, cross, melancholy, sensitive)
6
uncertain(adjective, change, weak, continue, delicate)
6
undependable(adjective, unpredictable, unreliable, erratic, moody)
6
wavering(adjective, weak, uncertain, doubtful, dubious)
6
whimsical(adjective, change, continue, careless, unstable)
5
curt
5
dyspeptic(adjective, nasty, unpleasant, dirty, disagreeable)
5
fiery(adjective, moving, passionate, nervous, fierce)
5
freakish(adjective, change, continue, careless, unstable)
5
gruff
10 years ago|11k views|share |citing 
APASmart Define. (2016). temperamental thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/temperamental/thesaurus/synonyms
ChicagoSmart Define. 2016. "temperamental thesaurus" https://smartdefine.org/temperamental/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, temperamental thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/temperamental/thesaurus/synonyms>.
MLASmart Define. "temperamental thesaurus" 28 March 2016. Web. 23 September 2026. <https://smartdefine.org/temperamental/thesaurus/synonyms>