1. (a.) Professing ignorance; involving no dogmatic; pertaining to or involving agnosticism.

2. (n.) One who professes ignorance, or denies that we have any knowledge, save of phenomena; one who supports agnosticism, neither affirming nor denying the existence of a personal Deity, a future life, etc.

Humean Humist Pyrrhonic Pyrrhonist ambiguous capricious chancy changeable dicey distrustful doubter doubtful doubting doubting Thomas dubious dubitante equivocal erratic fickle from Missouri hesitant hesitating in doubt incalculable incredulous indecisive indemonstrable irresolute leery mistrustful mistrusting polysemous questioning scoffer scrupulous shy skeptic skeptical suspecting suspicious touch-and-go unaccountable uncertain unconfirmable unconvinced undivinable unforeseeable unpersuaded unpredictable unprovable unsure untrusting unverifiable variable wary wavering whimsical