15
uneven(adjective, continue, irregular, unpredictable, unreliable)
14
crazy(adjective, beat, character, unusual, wild)
14
flighty(adjective, cross, careless, lively, melancholy)
14
freakish(adjective, change, continue, unusual, careless)
14
sporadic(adjective, irregular, restless, disturbed, broken)
14
strange(adjective, unusual, wild, crazy, usual)
14
undependable(adjective, passionate, uncertain, unstable, irregular)
14
wayward(adjective, careless, unstable, unreasonable, unpredictable)
13
fluctuating(adjective, lively, active, unstable, irregular)
13
haphazard(adjective, organization, plan, irregular, disturbed)
13
unusual(adjective, wild, strange, usual, irregular)
12
irresolute(adjective, careless, unstable, irregular, doubtful)
12
spasmodic(adjective, unstable, irregular, unsettled, unpredictable)
12
temperamental(adjective, change, continue, cross, careless)
12
unsettled(adjective, uncertain, unstable, irregular, doubtful)
12
unsystematic(adjective, careless, casual, irregular, random)
12
wavering(adjective, unstable, irregular, doubtful, unsettled)
11
bizarre(adjective, unusual, wild, strange, usual)
11
mutable(adjective, careless, unstable, unreasonable, unsettled)
11
outlandish(adjective, unusual, wild, strange, usual)
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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>