au·dac·i·ty/ɔ`dæsətɪ; ɔːˈdæsɪti/ n [U] brave or shocking behaviour 鲁莽（的行为），胆大妄为（的行为）: have the audacity to do sth (=do something that seems shocking, especially something very annoying that you should not do) 厚颜地做某事: I can't believe he had the audacity to ask for more money. 我不能相信他竟敢厚颜无耻地要更多的钱。