/ Dictionary / Index N nonessential: Meaning and Definition of Find definitions for: non•es•sen•tial Pronunciation: (non"u-sen'shul), [key] — adj. not essential; not necessary: Nonessential use of gasoline was forbidden during the war. —n. a nonessential thing or person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nonessential (Thesaurus) none-so-pretty non est Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language