[adj] (business) used of attempts to buy or take control of a business; "hostile takeover"; "hostile tender offer"
[adj] marked by features that oppose constructive treatment or development; "not able to accomplish much in such a hostile environment"
[adj] very unfriendly; "a hostile attitude"
[adj] not belonging to your own country's forces or those of an ally; "hostile naval and air forces"
[adj] very unfavorable to life or growth; "a hostile climate"; "an uncongenial atmosphere"; "an uncongenial soil"; "the unfriendly environment at high altitudes"
[adj] characterized by enmity or ill will; "a hostile nation"; "a hostile remark"; "hostile actions"
[adj] impossible to bring into friendly accord; "hostile factions"
aggressive, antagonistic, antipathetic, antipathetical, at loggerheads, belligerent, bitter, dirty, enemy(a), head-on, ill, inhospitable, inimical, irreconcilable, opponent, opposing, truculent, uncongenial, unfavorable, unfavourable, unfriendly, unreconc