2
shifty(adjective, weak, uncertain, sensitive, doubtful)
2
snappy(fast, rapid, swift)
2
spasmodic(adjective, unstable, irregular, unsettled, unpredictable)
2
spooky
2
touchy(adjective, delicate, cross, passionate, nervous)
2
transformable(adjective, unstable, unsettled, changeable, variable)
2
uncontrolled(nervous, emotional, restless, volatile, fiery)
2
unequable(adjective, changeable, fickle, volatile, changing)
2
unfaithful(adjective, changeable, indecisive, inconsistent)
2
untrustworthy(adjective, uneven, unbalanced, unhinged)
2
vacillate
2
vagrant(unstable, unsettled, variable)
2
vivacious
2
wanton
1
ASAP(fast, rapid, swift)
1
abstract(adjective, intellectual, unreal, unattainable)
1
accelerated(fast, quick, rapid, brisk, hasty)
1
activist
1
activistic
1
acute
11 years ago|16k views|share |citing 
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>