51 entries under unpredictable topic. ×

18
capricious(adjective, wrong, unusual, foolish, stupid)
12
erratic(adjective, careless, unstable, unreasonable, chance)
6
changeable(adjective, irregular, unreliable, variable)
5
careless(adjective, unstable, unreasonable, casual)
4
crotchety(adjective, careless, unstable, unreasonable)
4
peculiar(noun, unusual, irregular, unreliable)
3
aberrant(irregular, unreliable, unconformity, capricious)
3
eccentric(unusual, irregular, unreliable, fanciful)
3
humorsome(adjective, careless, unstable, unreasonable)
3
iffy(adjective, irregular, unreliable, changeable)
2
abnormal(irregular, unreliable, unconformity)
2
anomalous(irregular, unreliable, unconformity)
2
moody(adjective, careless, unstable, unreasonable)
2
notional(adjective, careless, unstable, unreasonable)
2
rambling(adjective, irregular, unreliable, motiveless)
2
strange(irregular, unreliable, irrelation)
2
stray(adjective, chance, irregular, unreliable)
2
unnatural(irregular, unreliable, unconformity)
1
any way the wind blows(adjective, careless, unstable, unreasonable)
1
blowing hot and cold(adjective, careless, unstable, unreasonable)
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APASmart Define. (2015). arbitrary thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/arbitrary/thesaurus/synonyms
ChicagoSmart Define. 2015. "arbitrary thesaurus" https://smartdefine.org/arbitrary/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, arbitrary thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/arbitrary/thesaurus/synonyms>.
MLASmart Define. "arbitrary thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/arbitrary/thesaurus/synonyms>