196 entries under unpredictable topic. ×

6
unnatural(adjective, unusual, wild, strange, crazy)
6
varying(adjective, unstable, irregular, unsettled)
5
dubious(adjective, weak, unusual, strange, loose)
5
flaky(adjective, informal, careless, silly, mad)
5
fleeting(adjective, impulsive, capricious, explosive)
5
fly-by-night(adjective, loose, unreliable, fickle)
5
fugitive(adjective, impulsive, transient, explosive)
5
iffy(adjective, uncertain, irregular, doubtful, vague)
5
transient(adjective, impulsive, changeableness, explosive)
4
dicey(adjective, unusual, irregular, dubious)
4
directionless(adjective, irregular, unreliable, frivolous)
4
incalculable(adjective, doubtful, dubious, changeable)
4
mobile(adjective, weak, lively, active, unstable)
4
short-lived(adjective, impulsive, explosive)
3
fluctuant(adjective, irregular, dubious, risky)
3
gaga(adjective, careless, lively, active, unstable)
3
mad(adjective, unusual, wild, strange, lively)
3
neurotic(adjective, passionate, anxious, unstable)
3
ticklish(adjective, change, continue, passionate, careless)
3
vagarious(adjective, careless, unstable, unreasonable, irregular)
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APASmart Define. (2016). erratic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/erratic/thesaurus/synonyms
ChicagoSmart Define. 2016. "erratic thesaurus" https://smartdefine.org/erratic/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, erratic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/erratic/thesaurus/synonyms>.
MLASmart Define. "erratic thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/erratic/thesaurus/synonyms>