above reproach

基本解释

Her behavior was above reproach.
她的行为无可指责。
xiyouniu.blog.163.com
It was a benevolent influence, of course, never abused, for people always said the Moorpalanis were a respectable family, and well above reproach.
这是种亲切的影响，当然，毫无负面，因此人们常说牧帕拉尼是个相当高尚的家族，而且无可指责。
peacherino2009.blog.163.com
He was affectionate and magnanimous, pious and austere in the practice of his religion, brave, zealous, and above reproach in his personal and family conduct.
他的深情和大度，虔诚，并在艰苦的实践他的宗教，勇敢，热心，并无可指责，在他个人和家庭的行为。

At the very least, this raises questions about fairness and impartiality from an agency that must be above reproach.
FORBES: Connect
Would that we could return to a time when whistleblowers were more-or-less above reproach for all things other than whistleblowing.
FORBES: In Praise of Whistleblowers - Yes, Even Julian Assange
Starr, an intense, hardworking man above reproach, who strives for the truth and to act fairly, seemed perfect for such a delicate task.
FORBES: Fact And Comment