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Definitions

unfamiliar

[uhn-fuh-mil-yer] / ˌʌn fəˈmɪl yər /
ADJECTIVE
different, strange
Synonyms
STRONGEST
bizarre curious exotic foreign new obscure peculiar unaccustomed unexpected unexplored unknown unusual
WEAK
alien anomalous extraordinary fantastic little-known novel original out-of-the-way outlandish recondite remarkable remote uncommon uninvestigated
Antonyms
STRONGEST
common familiar known normal ordinary regular standard usual
WEAK
experienced knowing versed
ADJECTIVE
inexperienced; not knowing about
Synonyms
STRONGEST
oblivious unaccustomed unaware unknown
WEAK
ignorant incognizant inconversant not associated not versed in out of contact unacquainted unconversant uninformed uninitiated uninstructed unknowing unpracticed unskilled unversed unwitting
Antonyms
STRONGEST
aware
WEAK
experienced familiar knowing known usual versed

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"People report feeling manipulated and eventually less willing to visit unfamiliar sites," it added.

From BBC • Apr. 15, 2026

Applying for jobs in an unfamiliar city where they may not have friends or family may be daunting for many new grads.

From MarketWatch • Apr. 14, 2026

In recent years, a number of gray whales have been spotted feeding in unfamiliar areas, including the heavily trafficked waters of San Francisco Bay.

From Science Daily • Apr. 13, 2026

The prosecutor and the trial judge were not unfamiliar names.

From Slate • Apr. 10, 2026

Instead of creeping stealthily down an unfamiliar street surrounded by unfamiliar buildings while trying to steal the most valuable treasure in an unfamiliar city, guess what I was doing?

From "Tristan Strong Punches a Hole in the Sky" by Kwame Mbalia

Vocabulary lists containing unfamiliar

TEKS ELAR Academic Vocabulary List (5th-7th grades)

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!