123 entries under variable topic. ×

6
changing(adjective, upset, weak, uncertain, anxious)
6
indefinite(adjective, loose, uncertain, doubtful, unsettled)
6
movable(adjective, weak, lively, active, doubtful)
6
spasmodic(adjective, anxious, irregular, unsettled, agitated)
5
convertible(adjective, unsettled, changeable)
5
impulsive(adjective, careless, lively, active, unreasonable)
5
moody(adjective, careless, unreasonable, unpredictable, changeable)
5
variant(adjective, change, unsettled)
4
agitated(adjective, upset, rough, violent, anxious)
4
alternating(adjective, changing, changeableness, fluctuating)
4
deviating(adjective, casual, erratic, random)
4
fanciful(adjective, careless, unreasonable, unpredictable, changeable)
4
flexible(adjective, changeable, fickle, volatile)
4
flickering(adjective, irregular, disturbed, changeable)
4
fly-by-night(adjective, careless, loose, foolish, uncertain)
4
freakish(adjective, change, continue, careless, unreasonable)
4
lubricious(adjective, smooth, careless, lively, uncertain)
4
questionable(adjective, open, obscure, uncertain, unsettled)
4
shifty(adjective, weak, uncertain, sensitive, doubtful)
4
vagrant(unsettled, changeableness)
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APASmart Define. (2016). unstable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unstable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, unstable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unstable/thesaurus/synonyms>.
MLASmart Define. "unstable thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/unstable/thesaurus/synonyms>