Mandatory: meaning, example and synonyms

Mandatoryadj. Required by a law or rule; compulsory.

Flashcard for Mandatory (adjective): required by a law or rule; compulsory. Example: After several accidents, safety training became mandatory for every volunteer before they could work on the restoration site. Synonyms: required, compulsory, obligatory, necessary. Antonyms: optional, voluntary, elective, discretionary. Memory tip: Mandatory shares a root with "command": it's commanded, so you must. Illustration: construction volunteers putting on bright yellow hard hats and vests at a gate before entering a work site.

Example

After several accidents, safety training became mandatory for every volunteer before they could work on the restoration site.

Part of speech
adjective
Synonyms
required, compulsory, obligatory, necessary
Antonyms
optional, voluntary, elective, discretionary
Memory tip
Mandatory shares a root with "command": it's commanded, so you must.

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Check yourself: Mandatory in context

Pick the word that best completes each text, as on the SAT's words-in-context questions.

Question 1

Wearing a helmet is ______ for all riders in the race; anyone found without one is immediately disqualified.

Question 2

Although the lecture was optional, the lab sessions were ______, and students who missed two of them failed the course.

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