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

Understanding the Context

MANDATORY definition: authoritatively ordered; obligatory; compulsory. See examples of mandatory used in a sentence. MANDATORY definition: 1. Something that is mandatory must be done, or is demanded by law: 2.

Key Insights

Something that is mandatory…. Learn more. 1. Required or commanded by authority; obligatory: Attendance at the meeting is mandatory. 2.

Final Thoughts

Of, having the nature of, or containing a mandate. 3. Holding a League of Nations mandate over a territory. If an action or procedure is mandatory, people have to do it, because it is a rule or a law. Definition of mandatory adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

There are six meanings listed in OED's entry for the word mandatory, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence. mandatory, adj. & n.