act of hostilityglossary / act of hostility act of hostility. An event that may be considered an adequate cause for war; CASUS BELLI. — Also termed hostile act. 词条贡献者 译者Jerry,毕业于亚洲顶尖的高级翻译学院,擅长翻译各种与政府调查与白领犯罪相关的法律文件。