Foolish
Stupid
noun, な adjective
おろか
野暮 （やぼ） Unrefined, Rustic, Stupid
馬鹿 （ばか） Idiot, Dumb, Fool, Stupid, Absurd
愚 （ぐ） Foolish, Silly, Folly, Foolishness
愚か （おろか） Foolish, Stupid
疎か （おろそか） Neglect, Negligence, Carelessness
愚か has a simpler meaning than 疎か, so it has a shorter reading おろか