unnecessary
Americanadjective
noun
-
unnecessaries
plural
adjective
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of unnecessary
Explanation
Anything that is extra or not needed is unnecessary. Wearing long underwear in July is an unnecessary precaution against being cold. If you don't need something, it's unnecessary. You take an unnecessary risk if you get in the car and don't bother to fasten your seatbelt. Driving your car when you could ride a bike instead is an unnecessary use of gasoline. If you keep dropping you pen in class, your teacher might say, "That's unnecessary." Walking your dog with two leashes is definitely unnecessary. That's obvious, but lots of times it's hard to tell what's necessary and what's unnecessary.
Vocabulary lists containing unnecessary
List 3
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List 9
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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:
Doing deep squats or lunges with poor form can put unnecessary strain on your knee joint.
From Science Daily ● Aug. 16, 2026
One of the other criticisms of the scheme has been that providers have gamed the system, offering unnecessary and expensive services.
From BBC ● Aug. 12, 2026
The most striking aspect of these deals is that, from a financial perspective, they’re totally unnecessary.
From Los Angeles Times ● Aug. 11, 2026
There’s something very powerful there: She’s demystifying a process that can still be shrouded in unnecessary secrecy, and making a choice many women have at least considered.
From Slate ● Aug. 11, 2026
“Seems to me you go to a lot of unnecessary trouble doing it,” I says.
From "The Sound and the Fury" by William Faulkner
There are some great songs on it, but they're smothered in unnecessaries that made it really cloudy.
From The Guardian ● May 23, 2013
She has the air of somebody who has reached a point in her life where she is dispensing with the unnecessaries.
From Time Magazine Archive
Now, how luxurious, how stuffed with shameful, wasteful unnecessaries those drawers and closets seemed!
From Susan Lenox: Her Fall and Rise by David Graham Phillips
Boroskie, thou art a Knave; it contains nothing But rubbish from the other rooms and unnecessaries: Will't please you see a strange Clock?
From Beaumont & Fletcher's Works (3 of 10): The Loyal Subject by Francis Beaumont
We also had enough unnecessaries to bring us to grief in a couple of weeks.
From Tracks of a Rolling Stone by Henry J. (Henry John) Coke
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.
