Essential and Necessary

Essential

Essential adjective - Impossible to do without.
Usage example: a well-stocked public library is essential for the well-being of a community

Necessary is a synonym for essential in important topic. In some cases you can use "Necessary" instead the word "Essential" as an adjective or a noun, when it comes to topics like vital, need, requirement, binding. popular alternative

Nearby Words: essence, essentially, essentiality

Necessary

Necessary adjective - Forcing one's compliance or participation by or as if by law.
Usage example: an emissions test is necessary before you can renew the registration for your car

Essential is a synonym for necessary in need topic. You can use "Essential" instead the word "Necessary" as an adjective or a noun, if it concerns topics such as binding, needed, important, required. popular alternative

Nearby Words: necessity, necessarily

How words are described

good good essential good necessary
bad bad essential bad necessary

Both words in one sentence

Cite this Source
Necessary and Essential. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/essential/necessary
Essential & Necessary. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/essential/necessary>.
Necessary or Essential. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/essential/necessary.
Google Ngram Viewer shows how "essential" and "necessary" have occurred on timeline