im·pro·pri·ety

/ˌımprəˈprajəti/ noun, pl -ties

formal

1 [noncount]

1 a : rude or immoral behavior : improper behavior

He has a reputation for impropriety.

The judge excused herself from the case to avoid any appearance of impropriety.

She was shocked by the young man's impropriety.

1 b : a rude or improper quality

She was shocked by the impropriety of his behavior/language.

2 [count] : a wrong or immoral act : an improper act

He has been accused of financial/sexual improprieties.