impudence       
noun [ U ] uk/ˈɪm.pjə.dəns/ us/ˈɪm.pjə.dəns/
 (尤指对年长者或上级)的放肆,无礼
the quality of being rude and not showing respect, especially towards someone who is older or in a more important position
  With a hint of impudence she told him not to talk. 她用略显放肆的口吻告诉他不要说话。 
 The memoir describes his life with honesty and impudence. 回忆录用诚实不溢美的方式叙述了他的生平。 
 See: impudent
 - More examples
 - He was all youthful bravado and impudence.
 - Mrs Grundy could take no more of such impudence and asked Annie to leave within the hour.
 - Several committee members had the impudence to complain about not being consulted.