Bound tightly by the hide, as an animal, or by the bark, as a tree: said of a horse, etc., when, from emaciation or other cause, the hide on its back or ribs cannot be loosened or raised in folds with the fingers; of a tree or a root, when the bark is so close or unyielding as to impede its growth.Hence Obstinately set in opinion or purpose; narrow-minded; bigoted; stubborn; unyielding: as, a hidebound partizan.Shut tightly; closed fast; hence, closefisted; stingy.