Definitions of hostility:

  • noun:   acts of overt warfare
  • noun:   a hostile (very unfriendly) disposition
    Example: "He could not conceal his hostility"
  • noun:   the feeling of a hostile person
    Example: "He could no longer contain his hostility"
  • noun:   a state of deep-seated ill-will
  • noun:   violent action that is hostile and usually unprovoked