This forum dictionary, even you can look it up does not have similar....watch our who you call dishonest, it may just bite you back like who really is being dishonest...
obtuse adjective he frustrated his teachers by pretending to be obtuse: stupid, slow-witted, slow, dull-witted, unintelligent, ignorant, simpleminded, witless; insensitive, imperceptive, uncomprehending; informal dim, dimwitted, dense, dumb, slow on the uptake, halfwitted, brain-dead, moronic, cretinous, thick, dopey, lamebrained, dumb-ass, dead from the neck up, boneheaded, chowderheaded. ANTONYMS clever, astute.
Why, because its not there good buddy... not there... do you want to apologize?