Downcast

Part of speech: noun (n.)

1. Downcast or melancholy look. That downcast of thine eye. Beau. & Fl.

2. A ventilating shaft down which the air passes in circulating through a mine.

Part of speech: adjective (a.)

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. Dryden. - Down"cast`ly, adv. -- Down"cast`ness, n.