adjective
1.
not well known
trying to find her way about the unfamiliar room in the dark
Synonyms: new, strange, unaccustomed
Related Word: exotic, foreign; curious, peculiar, remarkable; unknown
Contrasted words: accustomed, commonplace, customary, ordinary, usual, wonted
Antonyms: familiar
2.
Synonyms: ignorant 2, incognizant, inconversant, oblivious, unacquainted, unaware, uninformed, uninstructed, unknowing, unwitting
Antonyms: familiar