downcast /(?)/

down·cast

downcast

a.
  1. Cast downward; directed to the ground, from bashfulness, modesty, dejection, or guilt.
    'T is love, said she; and then my downcast eyes, And guilty dumbness, witnessed my surprise.
  2. depressed; dispirited; dejected; -- of people.

Downcast

n.
  1. Downcast or melancholy look.
    That downcast of thine eye.
  2. A ventilating shaft down which the air passes in circulating through a mine. (Mining)