unacquainted

unacquainted /ˌʌnəˈkweɪntəd/ adjective
unacquainted
/ˌʌnəˈkweɪntəd/
adjective
Britannica Dictionary definition of UNACQUAINTED
1 
: not having knowledge about something : not having seen or experienced something — often + with
2 
: not having met : not knowing each other in a personal or social way — often + with