nonessential

adjective

non·​es·​sen·​tial ˌnän-i-ˈsen(t)-shəl 

1

: not essential

2

: being a substance synthesized by the body in sufficient quantity to satisfy dietary needs

nonessential fatty acids

see also nonessential amino acid compare essential sense 2b

nonessential noun

Synonyms

• unnecessary

Examples of nonessential in a Sentence

All nonessential personnel had to be laid off.

Please avoid all nonessential uses of water.

Recent Examples on the Web

Start small: Decline one nonessential meeting this week. —Tinna Jackson, Forbes.com, 24 June 2025

Preparations for a possible Iranian attack began earlier this month, when the State Department ordered all nonessential personnel to leave its embassy in Baghdad. —Shelby Talcott, semafor.com, 22 June 2025

Federal holidays mean that nonessential federal government offices close, as do some stores and restaurants, meaning some mail services will not be making deliveries as many Americans celebrate the holiday. —Andrew Stanton, MSNBC Newsweek, 19 June 2025

The State Department on Wednesday directed a voluntary evacuation of nonessential personnel and their families from some U.S. diplomatic outposts in the Middle East. —Aamer Madhani, Chicago Tribune, 13 June 2025

Word History

First Known Use

1751, in the meaning defined at sense 1

Phrases Containing nonessential

• nonessential amino acid

Rhymes for nonessential

• consequential
• deferential
• evidential
• existential
• exponential
• influential
• penitential
• precedential
• preferential
• presidential
• providential
• referential

Kids Definition

nonessential

adjective

non·​es·​sen·​tial ˌnän-i-ˈsen-chəl 

: not necessary or essential

nonessential noun

Medical Definition

nonessential

adjective

non·​es·​sen·​tial -i-ˈsen-chəl 

: being a substance synthesized by the body in sufficient quantity for normal health and growth

a nonessential fatty acid

compare essential