/ɪˈfrʌntəri/
厚颜无耻的行为;放肆无礼的举动。指某人毫无羞耻心地做出冒犯他人或违反社会礼仪的事情。
He had the effrontery to ask for a raise after arriving late every day.
他每天迟到,却还厚着脸皮要求加薪。
The ambassador was shocked by the effrontery of the young diplomat, who openly contradicted his superior during the formal reception.
那位年轻外交官在正式招待会上公然顶撞上级,大使对他的放肆无礼感到震惊。
源自法语 effronterie,由 effronté(厚颜无耻的)派生而来。更早可追溯至拉丁语 effrons,由 **ex-**(去除)和 frons(前额、脸面)组成,字面意思是"不要脸的"——即丢掉了脸面,毫无羞耻之心。这一构词方式与中文"厚颜无耻"的意象异曲同工。