Adjective
1. characterized by enmity or ill will;
"a hostile nation""a hostile remark""hostile actions"2. not belonging to your own country's forces or those of an ally;
"hostile naval and air forces"3. very unfriendly;
"a hostile attitude"4. impossible to bring into friendly accord;
"hostile factions"5. very unfavorable to life or growth;
"a hostile climate""an uncongenial atmosphere""an uncongenial soil""the unfriendly environment at high altitudes"6. marked by features that oppose constructive treatment or development;
"not able to accomplish much in such a hostile environment"7. used of attempts to buy or take control of a business;
"hostile takeover""hostile tender offer"