44 unfamiliar synonyms include unknown, new, strange, foreign, alien, unheard of, beyond someone's ken, unusual, uncommon, and unconventional. Unfamiliar is an adjective, and its antonyms are familiar and known. Here are some additional synonyms for "unfamiliar" with example sentences.
44 other ways to say unfamiliar.
He faced an unfamiliar challenge at work today.
She felt uncomfortable in the unfamiliar surroundings.
The street looked unfamiliar to me at night.