353 entries under adjective topic. ×

2
intermittent(irregular, unreliable, changeable, uneven)
2
lubricious(careless, lively, uncertain, active)
2
mobile(upset, lively, uncertain, active)
2
odd(unusual, careless, strange, silly)
2
perilous(unstable, volatile, risky, dangerous)
2
problematic
2
queer(unusual, careless, strange, crazy)
2
quirky(unusual, careless, unstable, unreasonable)
2
rambling(strange, fantastic, irregular, improper)
2
rogue
2
serendipitous
2
shifty(weak, uncertain, sensitive, doubtful)
2
skeptical(uncertain, shy, doubtful, hesitant)
2
spasmodic(unstable, irregular, unsettled, unreliable)
2
strange(crazy, irregular, odd, unreliable)
2
unclear(doubtful, vague, hesitant, changeable)
2
uncontrolled
2
undeterminable
2
unfaithful(changeable, fickle, variable, undependable)
2
unlooked-for
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APASmart Define. (2015). unpredictable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unpredictable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unpredictable thesaurus" https://smartdefine.org/unpredictable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unpredictable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unpredictable/thesaurus/synonyms>.
MLASmart Define. "unpredictable thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/unpredictable/thesaurus/synonyms>