Synonyms of obligatory in English:

obligatory

adjective

  • 1 top hat and tails are obligatory for men
    compulsory, mandatory, prescribed, required, demanded, statutory, enforced, binding, incumbent; requisite, necessary, imperative, unavoidable, inescapable, essential
    [Antonyms] optional voluntary
  • Definition of obligatory in:

    Get more from Oxford Dictionaries

    Subscribe to remove adverts and access premium resources

    Word of the day hypnopompic
    Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
    adjective
    relating to the state immediately preceding waking up