Synonyms:
- Humean,
- Pyrrhonic,
- agnostic,
- ambiguous,
- capricious,
- cautious,
- chancy,
- changeable,
- cynical,
- dicey,
- disbelieving,
- disinclined to believe,
- disposed to doubt,
- dissenting,
- distrustful,
- doubtful,
- doubting,
- dubious,
- equivocal,
- erratic,
- fickle,
- freethinking,
- from Missouri,
- guarded,
- hard of belief,
- hesitant,
- hesitating,
- impervious to persuasion,
- in doubt,
- incalculable,
- inconvincible,
- incredulous,
- indecisive,
- indemonstrable,
- irresolute,
- leery,
- mistrustful,
- mistrusting,
- polysemous,
- questioning,
- scrupulous,
- shy,
- shy of belief,
- skeptic,
- suspecting,
- suspicious,
- touch-and-go,
- unaccountable,
- unbelieving,
- uncertain,
- unconfirmable,
- unconvinced,
- unconvincible,
- uncredulous,
- undivinable,
- unforeseeable,
- unpersuadable,
- unpersuaded,
- unpersuasible,
- unpredictable,
- unprovable,
- unsure,
- untrusting,
- unverifiable,
- unwilling to accept,
- variable,
- wary,
- wavering,
- whimsical