hostility hostility /hɑːˈstɪləti/

noun

1. () A hostile (very unfriendly) disposition  ( ill will , hostility )
   a hostile (very unfriendly) disposition
    He could not conceal his hostility
   he could not conceal his hostility
   
2. Violent action that is hostile and usually unprovoked  ( hostility , aggression )
   violent action that is hostile and usually unprovoked
   
3. The feeling of a hostile person  ( enmity , hostility , ill will )
   the feeling of a hostile person
    He could no longer contain his hostility
   he could no longer contain his hostility
   
4. A state of deep-seated ill-will  ( antagonism , enmity , hostility )
   a state of deep-seated ill-will