HOSTILITY Meaning of HOSTILITY in English n. (pl. -ies) 1. being hostile, enmity. 2 a state of warfare. 3 (in pl.) acts of warfare. 4 opposition (in thought etc.). Etymology: F hostilit{eacute} or LL hostilitas (as HOSTILE) Oxford English vocab. Оксфордский английский словарь. 2012