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unnecessary

[ uhn-nes-uh-ser-ee ]
/ ʌnˈnɛs əˌsɛr i /
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adjective
not necessary or essential; needless; unessential.
noun, plural un·nec·es·sar·ies.
unnecessaries, things that are not necessary or essential.
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Origin of unnecessary

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

OTHER WORDS FROM unnecessary

un·nec·es·sar·i·ly [uhn-nes-uh-sair-uh-lee, -nes-uh-ser-], /ʌnˌnɛs əˈsɛər ə li, -ˈnɛs əˌsɛr-/, adverbun·nec·es·sar·i·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use unnecessary in a sentence

British Dictionary definitions for unnecessary

unnecessary
/ (ʌnˈnɛsɪsərɪ, -ɪsrɪ) /

adjective
not necessary

Derived forms of unnecessary

unnecessarily, adverbunnecessariness, noun
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
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