Essential and Prerequisite

Essential

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

Prerequisite is a synonym for essential in necessity topic. In some cases you can use "Prerequisite" instead the word "Essential" as a noun or an adjective, when it comes to topics like important, necessary.

Nearby Words: essence, essentially, essentiality

Prerequisite

Prerequisite adjective - Required as a prior condition or course of study.
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Synonyms for Prerequisite

Essential is a synonym for prerequisite in necessary topic. You can use "Essential" instead the word "Prerequisite" as an adjective or a noun, if it concerns topics such as condition, requirement, required, necessary condition.

How words are described

main main essential main prerequisite

Both words in one sentence

  • The Engineer While not essential to the maintainance of vehicles — since one of the prerequisite buildings to train mechanics had the purpose of repairing vehicles — they could be useful by both being able to repair units on the front and not draining money while doing so.
    Source: The Engineer
  • By the end of the first year of the Pacific war, it was obvious that the essential prerequisite for fielding the superbattleships — the total destruction of the US carrier fleet — was never going to be met.
Cite this Source
Prerequisite and Essential. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/essential/prerequisite
Essential & Prerequisite. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/essential/prerequisite>.
Prerequisite or Essential. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/essential/prerequisite.
Google Ngram Viewer shows how "essential" and "prerequisite" have occurred on timeline