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Synonyms

unfamiliar

American  
[uhn-fuh-mil-yer] / ˌʌn fəˈmɪl jər /

adjective

  1. not familiar; not acquainted with or conversant about.

    to be unfamiliar with a subject.

  2. different; unaccustomed; unusual; strange.

    an unfamiliar treat.

    Synonyms:
    new, novel, curious

unfamiliar British  
/ ˌʌnfəˈmɪljə /

adjective

  1. not known or experienced; strange

  2. not familiar

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of unfamiliar

First recorded in 1585–95; un- 1 + familiar

Explanation

Unfamiliar things are unknown or unexplored. On your first day at a new school, every single face you see is unfamiliar. Traveling in an unfamiliar city is easier with a map or a GPS, and meeting the unfamiliar people who live there is easier if you speak at least a few words of their language. Some people love eating unfamiliar food — things they've never tasted before — while others aren't fond of it. When something (or someone) is familiar, it's known to you — the word shares a Latin root with family. Add the "not" prefix un-, and you've got unfamiliar.

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Vocabulary lists containing unfamiliar

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.

See Examples For:

Beaded axons themselves are not an unfamiliar sight.

From Science Daily Sep. 17, 2026

Earlier this year, Tamara Rosenthal, the head of marketing at Taskrabbit, was surprised to see thousands of dollars in unfamiliar charges on her company credit card.

From The Wall Street Journal Sep. 15, 2026

Why did he end up in a different area after taking an unusual and unfamiliar route?

From BBC Sep. 15, 2026

The following spring, Georgia’s surveyor-general Henry Yonge planted Bowen’s unfamiliar “Chinese vetches” and harvested three crops in a single season.

From Salon Sep. 13, 2026

But calling Momma and saying a few unfamiliar words had my heart feeling like it was stretched across Holly’s quilting frame.

From "Hope Springs" by Jaime Berry

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