unfamiliar · adjective /ʌn.fəˈmɪl.i.ər/
Word family
Nouns: familiarity, family
Adjectives: familiar, unfamiliar
Verbs: familiarize
Adverbs: familiarly
unfamiliar
B2 not known to you
Dictionary examples:
I noticed several unfamiliar faces in the meeting room.
His name was unfamiliar to me.
Learner example:
On the other hand, you may not like some dishes, because they may be unfamiliar to you. (First Certificate in English; B2; Russian)
be unfamiliar with sth
B2 to not have any knowledge or experience of something
Dictionary example:
A lot of people are unfamiliar with the system.