mandatory C1 Topic:Law & Government US /ˈmæn.dəˌt(ɔ)ɹi/ UK /ˈmæn.də.t(ə)ɹi/ See IPA manual Freq #11182 Meanings 1 adj Required by a rule or law; that must be done. Wearing a seatbelt is mandatory in this country. Thesaurus Synonyms 1 adj · required by a rule or law;... compulsoryobligatoryrequired Word family Derived forms mandatorilymandatorinessnonmandatorysupermandatory Related forms mandative Common collocations mandatory injunction Adjective + noun Etymology AI details From Late Latin mandatorius (“of or belonging to a mandator”), from mandātor (“one who commands”), equivalent to mandate + -ory; see mandate. *deh₃- Proto-Indo-European mandatorius la-lat View etymology graph -> Topics Law & Government Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # mandatory **Type:** Word **Level:** C1 **Part of speech:** adj **IPA (US):** /ˈmæn.dəˌt(ɔ)ɹi/ **IPA (UK):** /ˈmæn.də.t(ə)ɹi/ **Frequency rank:** 11182 ## Meanings 1. Required by a rule or law; that must be done. ## Examples - Wearing a seatbelt is mandatory in this country. ## Derived Forms - mandatorily - mandatoriness - nonmandatory - supermandatory ## Related Forms - mandative ## Roots and Affixes - Root: *deh₃- - Root: mandatorius ## Etymology From Late Latin mandatorius (“of or belonging to a mandator”), from mandātor (“one who commands”), equivalent to mandate + -ory; see mandate. ## AI Etymology Mandatory comes from Late Latin mandatorius (“of or belonging to a mandator”), from mandātor (“one who commands”), equivalent to mandate + -ory; see mandate. The historical chain includes *deh₃- (Proto-Indo-European) and mandatorius (Late Latin). The surrounding word family includes derived forms such as mandatorily, mandatoriness, nonmandatory, and supermandatory and related forms such as mandative. In present use it covers required by a rule or law; that must be done. ## Topics - Law & Government - Word Formation & Derivatives markdown