unfamiliar adj.
1 not well-known to you
VERBS be, feel, look, sound
ADV. very | completely, quite, totally | not entirely | slightly
PREP. to The language was completely unfamiliar to me.
2 not having knowledge or experience of sth
VERBS appear, be, seem
ADV. very | completely, quite | relatively
PREP. with We were quite unfamiliar with the town.