S: (adj) hostile (characterized by enmity or ill will) "a hostile nation"; "a hostile remark"; "hostile actions"
S: (adj) hostile (not belonging to your own country's forces or those of an ally) "hostile naval and air forces"
S: (adj) hostile (impossible to bring into friendly accord) "hostile factions"
S: (adj) hostile, uncongenial, unfriendly (very unfavorable to life or growth) "a hostile climate"; "an uncongenial atmosphere"; "an uncongenial soil"; "the unfriendly environment at high altitudes"
S: (adj) hostile (unsolicited and resisted by the management of the target company (used of attempts to buy or take control of a business)) "hostile takeover"; "hostile tender offer"; "hostile bid"