audacity

他竟然有胆量在老板面前提出反对意见。

He had the ___audacity to voice his disagreement in front of the boss.

她竟敢在会议上打断CEO的讲话，真是厚颜无耻。

I can't believe her ___audacity to interrupt the CEO during the meeting.

他挑战传统观念的胆识让整个团队都感到震惊。

His ___audacity in challenging conventional ideas shocked the whole team.