credibility       
noun [ U ] uk/ˌkred.əˈbɪl.ə.ti/ us/ˌkred.əˈbɪl.ə.t̬i/
C2 可信性;可靠性
the fact that someone can be believed or trusted
  His arrest for lewd behaviour seriously damaged his credibility as a religious leader. 他因猥亵行为被捕,这严重地损害了他作为宗教领袖的信誉。 
 He complained that we had tried to undermine his credibility within the company. 他抱怨说我们企图损害他在公司的威信。 
 - More examples
 - A mistake like that will do his credibility a lot of harm.
 - The result of the vote poses a serious challenge to the government's credibility.
 - With five consecutive defeats, the manager has lost all credibility.