Impropriety

Allegations of sexual impropriety were levelled against the headmaster.

Tom seemed unconcerned with the impropriety of his question.

You accuse me of impropriety?

If so many ladies of rank wrote books, there could be no impropriety in her following their example,...

To see the impropriety of this noninformative prior, note that the posterior results (2.19)–(2.22) can be justified by as [sic] combining the likelihood function with the following ‘prior density’: […]

Bayh and his supporters ended up maintaining that it was no longer sufficient that a nominee had not engaged in any impropriety; now there must be no "appearance" of impropriety. Thus opponents of a nominee could raise an "appearance" of impropriety by false charges and thereby defeat him. It was a vicious circle: the nominee would not be condemned for what he had done but for what he had been accused of having done by his detractors.