5
whimsical(adjective, change, continue, careless, unreasonable)
5
wild-cat(adjective, characteristic, quality, finance, banking)
5
wild cat(adjective, characteristic, quality, finance, banking)
5
worthless(adjective, characteristic, quality, finance, banking)
4
agitated(adjective, upset, rough, violent, anxious)
4
alterable(adjective, change, changeable, changeableness)
4
alternating(adjective, variable, changing, changeableness, fluctuating)
4
ambiguous(adjective, delicate, uncertain, doubtful, unsettled)
4
batty(disturbed, erratic, unhinged)
4
borderline(adjective, delicate, uncertain, nervous, doubtful)
4
chancy(adjective, delicate, uncertain, doubtful, unsettled)
4
crazy(adjective, wrong, careless, foolish, stupid)
4
daft(disturbed, erratic, unhinged)
4
deciduous
4
deranged(false, mad, ill, shaky, insane)
4
deviating(adjective, casual, variable, erratic, random)
4
dilapidated
4
eccentric(adjective, unusual, uncertain, irregular, unpredictable)
4
elastic(adjective, lively, impulsive, unpredictable, changeable)
4
ephemeral(adjective, short, limited, impulsive, unpredictable)
10 years ago|29k views|share |citing 
APASmart Define. (2016). unstable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unstable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, unstable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unstable/thesaurus/synonyms>.
MLASmart Define. "unstable thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/unstable/thesaurus/synonyms>