absolute arrested babbling backward blasted blessed burbling crackbrained cracked crazy cretinistic cretinous dithering downright driveling drooling gross half-baked half-witted idiotic imbecile imbecilic maundering mentally defective mentally deficient mentally handicapped mentally retarded mongoloid moronic not all there out-and-out outright positive rank retarded simple simpleminded simpletonian slobbering subnormal