a. [ L. hostilis, from hostis enemy: cf. F. hostile. See Host an army. ] Belonging or appropriate to an enemy; showing the disposition of an enemy; showing ill will and malevolence, or a desire to thwart and injure; occupied by an enemy or enemies; inimical; unfriendly;
n. An enemy; esp., an American Indian in arms against the whites; -- commonly in the plural. [ Colloq. ] P. H. Sheridan. [ 1913 Webster ]
adv. In a hostile manner. [ 1913 Webster ]
n. (Finance) the purchase of a controlling interest in a publicly-traded company against the wishes of the current management. A person who is the main principal in performing such a buyout is called a corporate raider.