Dictionary.com
Thesaurus.com
Showing results for unnecessary. Search instead for Unnecessari.
Synonyms

unnecessary

American  
[uhn-nes-uh-ser-ee] / ʌnˈnɛs əˌsɛr i /

adjective

  1. not necessary or essential; needless; unessential.


noun

  • unnecessaries
    plural
  1. unnecessaries, things that are not necessary or essential.

unnecessary British  
/ ʌnˈnɛsɪsərɪ, -ɪsrɪ /

adjective

  1. not necessary

"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

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of unnecessary

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

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.

Keep Reading on Vocabulary.com

Vocabulary lists containing unnecessary

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:

Poet Amanda Gorman, who served as sometime narrator, added unnecessary glamour.

From Los Angeles Times Aug. 26, 2026

The National Transportation Safety Board determined the burn was unnecessary and based on misleading and incomplete information from Norfolk Southern and contractors.

From The Wall Street Journal Aug. 25, 2026

I’m kidding: Even under normal circumstances, giving private companies this much power is likely to incentivize inventing enemies to fight or drive unnecessary spending.

From Salon Aug. 17, 2026

Berner warned that new homeowners should not get hung up on their home’s value after they move in, as it could lead to unnecessary anxiety.

From MarketWatch Aug. 15, 2026

Reducing the amount of time people spend behind bars—by eliminating harsh mandatory minimums—will alleviate some of the unnecessary suffering caused by this system, but it will not disturb the closed circuit.

From "The New Jim Crow" by Michelle Alexander

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

I say, pater, do come up while I toss a few unnecessaries into my case.—That's right, Brown; put my bag in my room.

From The Parts Men Play by Arthur Beverley Baxter

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

No mission chest piously outfitted at home ever carried to the remote heathen a more useless assortment of unnecessaries than this one brought to me.

From The Portal of Dreams by Charles Neville Buck

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training