Unacquainted | Mean of unacquainted in English Dictionary

/ˌʌnəˈkweɪntəd/

• not having knowledge about something
1. I am unacquainted with her books. [=I have never read or heard about her books]
• not having met
1. unacquainted cousins
2. Although they both lived in the same small town, my friend was unacquainted with my brother.