143 entries under unpredictable topic. ×

8
fluctuating(adjective, weak, unstable, irregular, doubtful)
8
sensitive(adjective, weak, delicate, passionate, unstable)
8
shifting(adjective, upset, anxious, unstable, irregular)
8
unsound(adjective, delicate, loose, sensitive, feeble)
7
chance(adjective, changeable, erratic, random)
7
fallible(adjective, unreliable, fickle, variable)
7
protean(adjective, unstable, unsettled, unreliable)
7
shifty(adjective, weak, sensitive, irregular, doubtful)
7
spasmodic(adjective, unstable, irregular, unsettled)
6
changeful(adjective, upset, anxious, unstable, irregular)
6
false(adjective, fickle, variable, untrustworthy)
6
fluky(adjective, chance, changeable, risky)
6
temperamental(adjective, change, weak, continue, delicate)
6
unforeseeable(adjective, doubtful, vague, changeable)
5
desultory(irregular, unreliable, erratic, random)
5
fluid(adjective, upset, change, anxious, unstable)
5
fly-by-night(adjective, nervous, doubtful, dubious)
5
impulsive(adjective, unusual, unstable, chance, original)
5
uneven(adjective, irregular, unreliable, variable)
5
varying(adjective, unstable, irregular, unsettled)
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APASmart Define. (2016). uncertain thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/uncertain/thesaurus/synonyms
ChicagoSmart Define. 2016. "uncertain thesaurus" https://smartdefine.org/uncertain/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, uncertain thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/uncertain/thesaurus/synonyms>.
MLASmart Define. "uncertain thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/uncertain/thesaurus/synonyms>