unitas actusglossary / UNITAS ACTUS unitas actus (yoo-ni-tas ak-t[schwa]s). [Latin] Roman law. Unity of action, esp. in the execution of a will, which must not be interrupted by any intervening act. 词条贡献者 双语律师Jason,国内知名法学院国际贸易专业,擅长翻译各类与出口管制、经济制裁及海关相关的法律文件。