unfamiliar
/ˌʌnfəˈmɪljər/ adjective
› not known to you yabancı, tanıdık olmayan; aşina olunmayan
an unfamiliar face His name was unfamiliar to me.1793 be unfamiliar with sth › to not have any knowledge or experience of something aşina olmamak; yabancısı olmak; alışık olmamak
Many older people are unfamiliar with computers.1793