unacquainted

/ˌʌnəˈkweɪntɪd/
adjective
  1. Not having met or had any contact with someone; not familiar with a person.
    • The two teams were unacquainted before the tournament began.
    • She felt awkward at the party because she was unacquainted with most of the guests.
    • I am completely unacquainted with your cousin, so please introduce us.
  2. Lacking knowledge or experience of something; not familiar with a subject, place, or activity.
    • The new employee is unacquainted with the company's software system.
    • Many tourists are unacquainted with the local customs and traditions.
    • He is unacquainted with the rules of chess, so he keeps making illegal moves.
What does "unacquainted" mean? | whatsthatwordmean | whatsthatwordmean