I'm putting words into Chaplin's mouth, a highly improper thing to do.
Deploring the action of the concerned officials as highly improper.
And away went Meg to help 'that man' in his highly improper employment.
It was highly improper for her to be here like this, she knew, but Olivia had no intention of ending the moment.
There's something highly improper going on, up just beyond atmosphere.
You're asking me to do something that is highly improper!
"It's highly improper for you to be here in my bedroom."
His manner suggested that my question was highly improper.
It's highly improper for you to come here and lecture us on such a subject.
It would be highly improper, of course, but Rachel did not care.