Dictionary.com
Thesaurus.com
Synonyms

uncommon

American  
[uhn-kom-uhn] / ʌnˈkɒm ən /

adjective

uncommoner, uncommonest
  1. not common; unusual; rare.

    an uncommon word.

    Synonyms:
    queer, peculiar, strange, singular, odd, infrequent, scarce
  2. unusual in amount or degree; above the ordinary.

    an uncommon amount of mail.

    Synonyms:
    extraordinary
  3. exceptional; remarkable.

    Synonyms:
    outstanding

uncommon British  
/ ʌnˈkɒmən /

adjective

  1. outside or beyond normal experience, conditions, etc; unusual

  2. in excess of what is normal

    an uncommon liking for honey

"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

adverb

  1. an archaic word for uncommonly

"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 uncommon

First recorded in 1540–50; un- 1 + common

Explanation

Anything uncommon is rare or unusual, like your uncommon last name, which all of your friends have trouble pronouncing. When you add the prefix un- to common, "occurring or done often," you get its opposite, uncommon. The word's earliest meaning was "not possessed in common," or not owned by everyone, from another meaning of common, "shared by the community." These days, people almost always mean "exceptional" or "not likely" when they describe something as uncommon: "It's uncommon for people to win the lottery, so don't waste your money!"

Keep Reading on Vocabulary.com

Vocabulary lists containing uncommon

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.

Uncommon in a post-pandemic era of self-tape auditions, the open and in-person auditions attracted actors hungry for their big break and locals hoping to leave with a fun story to tell.

From Los Angeles Times • Feb. 20, 2026

The online retailer Uncommon Goods also has a made-in-USA section, and the retailer American Made Man specializes in goods made domestically.

From MarketWatch • Nov. 12, 2025

The sensors for the study were developed with the support of a Leitner Award for Uncommon Environmental Collaborations.

From Science Daily • Nov. 14, 2024

Canfield and Reeves were impressed by her charter school experience, including a stint at one of the largest charter school networks in the country, Uncommon Schools.

From Seattle Times • Feb. 15, 2024

"Uncommon bad mutton chops these are," said Staveley, as they sat at their meal in the coffee-room of the Imperial Hotel.

From Orley Farm by Trollope, Anthony

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "uncommon" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com