unfamiliar
[adjective]
Synonyms: strange, alien, different, new, novel, unknown, unusual

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Antonyms: familiar
Contrasted words: accustomed, commonplace, customary, ordinary, usual, wonted
Related Words: exotic, foreign, curious, peculiar, remarkable, unknown

[TahlilGaran] English Synonym Dictionary ▲

un‧fa‧mil‧i‧ar /ˌʌnfəˈmɪliə◂ $ -ər◂/ adjective
[Word Family: noun: familiarity ≠ unfamiliarity, family, familiarization; adjective: familiar ≠ unfamiliar, familial; verb: familiarize; adverb: familiarly]

1. not known to you
unfamiliar surroundings/place/environment etc
She stood on deck to gaze at the unfamiliar surroundings.
a crowd of unfamiliar faces
unfamiliar to
Some of the technical vocabulary may be unfamiliar to you.

2. be unfamiliar with something to not have any experience of something:
We were unfamiliar with the neighbourhood.
—unfamiliarity /ˌʌnfəmɪliˈærəti, ˌʌnfəmɪliˈærɪti/ noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲

unfamiliar
adj.
I. 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.

[TahlilGaran] Collocations Dictionary ▲

unfamiliar
II. 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.

[TahlilGaran] Collocations Dictionary ▲