He was unacquainted with that aspect of the question.
I am at an unfavourable position in being conversationally unacquainted with English.
Tom was at sea-a great seal was something which he was totally unacquainted with .
For his own part, he is unacquainted with the new Paris, and he writes with the old Paris before his eyes in an illusion which is precious to him.
If a Chinese is invited to a meal, he will try to find an opportunity to give a return banquet to the inviter, otherwise, he would be regarded as unacquainted with the ways of the world.