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:

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    Word of the day envenom
    Pronunciation: enˈvenəm
    verb
    put poison on or into; make poisonous