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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/
  • (file)


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



Derived terms[edit]



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

Further reading[edit]