know-nothing Synonyms

ignoramus dork pinhead berk bonehead lowbrow dope uneducated person uncultured empty-headed airhead lacking knowledge nimrod dimwit unschooled greeny greener dim bulb clodpole chowderhead charlie bubblehead uneducated doofus prat agnostical bozo fool fathead dunce dummy dumb donkey dolt chump chucklehead blockhead gander idiot birdbrain untutored untaught numskull nit nincompoop mug imbecile illiterate ignorant benighted