Available Definitions:
1) a. - Wild or intractable; disposed to break away from duty; untamed; as, a haggard or refractory hawk.
2) a. - Having the expression of one wasted by want or suffering; hollow-eyed; having the features distorted or wasted, or anxious in appearance; as, haggard features, eyes.
3) a. - A young or untrained hawk or falcon.
4) a. - A fierce, intractable creature.
5) a. - A hag.
6) n. - A stackyard.