1. (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.

2. (n.) An enemy; esp., an American Indian in arms against the whites; -- commonly in the plural.

acrid adversary adversative adverse adversive against aggressive alien allergic antagonistic anti antipathetic antithetic antonymous argumentative at cross-purposes at loggerheads at odds at variance at war averse balancing battling bellicose belligerent bitter bloodthirsty bloody bloody-minded breakaway caustic chauvinist chauvinistic clashing cold colliding combative compensating competitive con conflicting confronting contentious contradicting contradictory contradistinct contrapositive contrarious contrary contrasted converse counter counteractant counteracting counteractive counterbalancing counterpoised countervailing counterworking cranky cross crotchety dead against despiteful detrimental differing difficult dim disaccordant disaffected disagreeable disagreeing disapproving discordant discrepant disenchanted disharmonious disinclined displeased disproportionate dissentient dissident dissonant divergent dour enemy eyeball to eyeball ferocious fierce fighting fractious full of fight full of hate grating hard harmful hateful hawkish ill immiscible in opposition inaccordant incompatible inconsistent inharmonious inhospitable inimical inverse jangling jarring jingo jingoish jingoist jingoistic loath malevolent malicious malignant martial militant militaristic military miserable negative nonconformist noncooperative not charmed not easy obstinate obverse offensive opponent opposed opposing opposite oppositional oppositive oppugnant out of accord out of whack overthwart perverse pugnacious put off quarrelsome rancorous reactionary recalcitrant refractory renitent repugnant resistant reverse revolutionary rigorous rival saber-rattling sanguinary sanguineous savage scrappy set against sinister soldierlike soldierly sore sour spiteful squared off stressful trigger-happy troublesome troublous truculent trying uncongenial uncooperative unfavorable unfriendly unharmonious unpacific unpeaceable unpeaceful unpropitious unsympathetic untoward variant venomous virulent vitriolic warlike warmongering warring wretched