hostility

 
Pronunciation: /hɒˈstɪlɪti/

noun (plural hostilities)

[mass noun]
  • hostile behaviour; unfriendliness or opposition: their hostility to all outsiders
  • (hostilities) acts of warfare: he called for an immediate cessation of hostilities

Origin:

late Middle English: from French hostilité or late Latin hostilitas, from Latin hostilis (see hostile)