say it: uhn-fuh-MI-lyur
unfamiliar is an adjective meaning "not known or well known". It carries one recorded sense.
not known or well known
“a name unfamiliar to most”
“be alert at night especially in unfamiliar surroundings”
Definitions, synonyms and semantic relations for unfamiliar come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.