unusual
Americanadjective
adjective
Other Word Forms
- unusually adverb
- unusualness noun
Etymology
Origin of unusual
Explanation
Something unusual is uncommon. It's odd, weird, or out of the ordinary in some way. Unusual is the opposite of usual, thanks to the prefix un, meaning "not." Unusual things are noteworthy: you don't see them every day. A dog chasing a squirrel is usual. A squirrel chasing a dog would be unusual. Unusual can mean strange and bizarre, or just things that are rare. If someone is always absent, showing up would be unusual. Most surprising things are unusual.
Vocabulary lists containing unusual
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.
Something unusual is happening in the art market.
From The Wall Street Journal • Apr. 26, 2026
This was a highly unusual request because, as Taraleigh Davis at SCOTUSblog confirms, “nobody had previously asked the court to halt such a major executive regulatory action before any appellate court had ruled on it.”
From Salon • Apr. 25, 2026
Her team suggests this unusual event could represent something entirely new, a superkilonova, meaning a kilonova triggered by a supernova.
From Science Daily • Apr. 24, 2026
The resolution on the hostage speaking event also drew an unusual formal response from the university itself.
From Los Angeles Times • Apr. 24, 2026
Even before Barry Voight’s visit, Johnston had worried about the story of one unusual volcano in particular.
From "Mountain of Fire" by Rebecca E. F. Barone
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
