nonessential

[ non-uh-sen-shuhl ]
/ ˌnɒn əˈsɛn ʃəl /

adjective

not essential; not necessary: Nonessential use of gasoline was forbidden during the war.

noun

a nonessential thing or person.

Origin of nonessential

First recorded in 1745–55; non- + essential
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nonessential

British Dictionary definitions for nonessential

nonessential

/ (ˌnɒnɪˈsɛnʃəl) /

adjective

not essential; not necessary
biochem (of an amino acid in a particular organism) able to be synthesized from other substances

noun

a nonessential person or thing
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

Medicine definitions for nonessential

nonessential

[ nŏn′ĭ-sĕnshəl ]

adj.

Being a substance required for normal functioning but not needed in the diet because the body can synthesize it.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.