blind cautious closed to deaf disinclined to believe disposed to doubt dogmatic guarded hard of belief impersuadable impersuasible impervious impervious to persuasion inconvincible incredulous inflexible leery obstinate positive shy of belief skeptical suspecting suspicious unamenable unconvincible uncredulous unimpressionable uninfluenceable unmovable unpersuasible unpliable unreceptive unresponsive unsuggestible unsusceptible unswayable unwilling to accept unyielding wary