Pyrrhonic agnostic cagey careful cautious chary disinclined to believe disposed to doubt distrustful doubtful doubting dubious from Missouri guarded hard of belief impervious to persuasion in doubt inconvincible incredulous mistrustful mistrusting questioning sceptical scrupulous shy shy of belief skeptical suspecting suspicious uncertain unconvincible uncredulous unpersuadable unpersuasible untrusting unwilling to accept wary