166 entries under unstable topic. ×

14
wayward(adjective, careless, unreasonable, unpredictable)
13
fluctuating(adjective, lively, active, irregular)
12
irresolute(adjective, careless, irregular, doubtful)
12
spasmodic(adjective, irregular, unsettled, unpredictable)
12
temperamental(adjective, change, continue, cross, careless)
12
unsettled(adjective, uncertain, irregular, doubtful)
12
wavering(adjective, irregular, doubtful, unsettled)
11
mutable(adjective, careless, unreasonable, unsettled)
10
shifting(adjective, irregular, unsettled, shaky)
10
vacillating(adjective, irregular, doubtful, unsettled)
9
arbitrary(adjective, careless, unreasonable, chance)
9
restless(adjective, irregular, unsettled, agitated)
8
impulsive(adjective, cross, unusual, careless, lively)
8
indecisive(adjective, doubtful, unsettled, vague)
8
kinky(adjective, unusual, careless, strange)
8
moody(noun, adjective, careless, unreasonable)
8
quirky(adjective, unusual, careless, wild, stupid)
7
changeful(adjective, careless, unreasonable, irregular)
7
giddy(adjective, weak, careless, silly, uncertain)
7
irresponsible(adjective, wild, silly, foolish)
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APASmart Define. (2016). erratic thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/erratic/thesaurus/synonyms
ChicagoSmart Define. 2016. "erratic thesaurus" https://smartdefine.org/erratic/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, erratic thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/erratic/thesaurus/synonyms>.
MLASmart Define. "erratic thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/erratic/thesaurus/synonyms>