mandatory

From Late Latin mandatorius (“of or belonging to a mandator”), from mandator (“one who commands”); see mandate.

• (UK) IPA^(key): /ˈmæn.də.t(ə)ɹi/
• (US) IPA^(key): /ˈmæn.dəˌtɔ.ɹi/

• Audio (US)

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mandatory (comparative more mandatory, superlative most mandatory)

1. Obligatory; required or commanded by authority.

   Attendance at a school is usually mandatory for children.

   • 1999, Ian Stewart, Jack Cohen, Figments of Reality: The Evolution of the Curious Mind, page 276

     This kind of immediate control structure we take to be characteristic of the tribe, and it leads to a rather rigid type of system in which 'every action not mandatory is forbidden'.

   • 2011, Dirk Bünger, Deficits in EU and US Mandatory Environmental Information Disclosure: Legal, Comparative Legal and Economic Facets of Pollutant Release Inventories, Springer Science & Business Media →ISBN, page 57

     It also discusses the access to legal instruments for enforcement with regard to mandatory disclosure of environmental information.

2. Of, being or relating to a mandate.

   Mandatory Palestine

• (required or commanded by authority): compulsory, obligatory; See also Thesaurus:compulsory
• (relating to a mandate):

• (required or commanded by authority): optional, elective; See also Thesaurus:optional
• (relating to a mandate):

• mandatoriness

mandatory (plural mandatories)

1. (disc golf) A sign or line that require the path of the disc to be above, below or to one side of it.

   Synonym: mando (colloquail)

2. (dated, rare) A person, organisation or state who receives a mandate; a mandatary.

• mandatory in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• mandatory in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• Oxford Advanced Learner's Dictionary
• The Oxford English Dictionary

• damnatory