prerequisite

Definitions

A thing that is required as a prior condition for something else to happen or exist.

Something that must be completed or achieved before proceeding to a more advanced stage.

Examples

A basic understanding of algebra is a prerequisite for this advanced physics course.

Good communication skills are a prerequisite for success in any management role.

Passing the written exam is a mandatory prerequisite for obtaining your driver's license.

Synonyms

requirement necessity condition precondition essential stipulation qualification

Antonyms

option nonessential extra luxury unnecessary supplement choice