Hostile

Part of speech: noun (n.)

An enemy; esp., an American Indian in arms against the whites; -- commonly in the plural. [Colloq.] P. H. Sheridan.

Part of speech: adjective (a.)

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; as, a hostile force; hostile intentions; a hostile country; hostile to a sudden change.

Synonyms: Warlike; inimical; unfriendly; antagonistic; opposed; adverse; opposite; contrary; repugnant.