philistine [philistines](person who is ignorant or uneducated; specifically, a person who lacks appreciation of culture) noun [UK: ˈfɪ.lɪ.staɪn] [US: ˈfɪ.lɪ.staɪn]
cahiladjective
clueless(lacking knowledge or understanding) adjective [UK: ˈkluː.ləs] [US: ˈkluː.ləs]
ignorant(characterized by ignorance) adjective [UK: ˈɪɡ.nə.rənt] [US: ˈɪɡ.nə.rənt]