10
irregular(adjective, lively, uncertain, active, unsettled)
10
mad(adjective, false, lively, foolish, crazy)
10
restless(adjective, awkward, content, irregular, unsettled)
10
rocky(adjective, weak, delicate, uncertain, awkward)
10
shifting(adjective, upset, anxious, limited, irregular)
10
ticklish(adjective, upset, change, understanding, continue)
10
tottering(adjective, change, strong, weak, unsettled)
10
unbalanced(adjective, false, mad, ill, unsettled)
10
unfixed(adjective, short, limited, unsettled, unpredictable)
9
changeful(adjective, upset, careless, anxious, unreasonable)
9
dangerous(adjective, delicate, false, wild, uncertain)
9
dizzy(adjective, careless, stupid, doubtful, shaky)
9
flimsy(adjective, weak, delicate, ill, sick)
9
impermanent(adjective, short, limited, impulsive, unpredictable)
9
perilous(adjective, upset, smooth, delicate, wild)
9
protean(adjective, unsettled, unpredictable, unreliable, changeable)
9
sensitive(adjective, weak, delicate, passionate, uncertain)
9
treacherous(adjective, uncertain, dishonest, shaky, unpredictable)
9
undecided(adjective, weak, uncertain, nervous, doubtful)
9
varying(adjective, irregular, unsettled, unpredictable, unreliable)
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>