The meaning of MANDATORY is required by a law or rule : obligatory. How to use mandatory in a sentence. Did you know?

MANDATORY definition: 1. Something that is mandatory must be done, or is demanded by law: 2. Something that is mandatory…. Learn more.

MANDATORY definition: authoritatively ordered; obligatory; compulsory. See examples of mandatory used in a sentence.

Definition of mandatory adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If an action or procedure is mandatory, people have to do it, because it is a rule or a law.

1. Required or commanded by authority; obligatory: Attendance at the meeting is mandatory. 2. Of, having the nature of, or containing a mandate. 3. Holding a League of Nations mandate over a territory.

adj. authoritatively ordered; obligatory; compulsory: It is mandatory that all students take two years of math. pertaining to, of the nature of, or containing a command. Law permitting no option; not to be …

Apr 9, 2026 · Adjective mandatory (comparative more mandatory, superlative most mandatory) obligatory; required or commanded by authority.

mandatory meaning, definition, what is mandatory: if something is mandatory, the law says ...: Learn more.

Certain laws can be mandatory, meaning they require people to act in a specific way, like wearing seat belts in cars. Judges often interpret mandatory rules strictly to ensure clarity in legal proceedings.