impropriety

noun3

1. •
   The condition of being improper.

   • If so many ladies of rank wrote books, there could be no impropriety in her following their example,... — 1842
2. •
   An improper act.

   • Still, public confidence in the CDC continued to be shaken by allegations in the press, and U.S. Senator Lowel Weicker […] grew concerned about the suspected improprieties. — 1986
3. •
   Improper language.