View synonyms for mandatory


[ man-duh-tawr-ee, -tohr-ee ]


  1. authoritatively ordered; obligatory; compulsory:

    It is mandatory that all students take two years of math.

    Synonyms: exigent, requisite

  2. pertaining to, of the nature of, or containing a command.
  3. Law. permitting no option; not to be disregarded or modified:

    a mandatory clause.

  4. having received a mandate, as a nation.


, plural man·da·to·ries.


/ ˈmændətərɪ; -trɪ /


  1. having the nature or powers of a mandate
  2. obligatory; compulsory
  3. (of a state) having received a mandate over some territory


  1. Also calledmandatary a person or state holding a mandate

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Derived Forms

  • ˈmandatorily, adverb

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Other Words From

  • manda·tori·ly adverb
  • non·manda·tory adjective noun plural nonmandatories
  • un·manda·tory adjective

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Word History and Origins

Origin of mandatory1

From the Late Latin word mandātōrius, dating back to 1655–65. See mandate, -tory 1

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Example Sentences

Since the programs are not mandatory, though, it’s unclear how popular they will become and the extent to which officers will participate.

From Vox

Soon after they left, a mandatory evacuation order went into effect.

Apple now says that, while developers will be able to implement this notification and request for permission, doing so will no longer be mandatory when iOS 14 launches sometime in the next couple of months.

That same study asked travelers what they needed to feel comfortable boarding an airplane, and the top three responses were mandatory masks, seating spaced six feet apart, and pre-boarding temperature checks.

From Fortune

The surveys are not mandatory, so employees can opt out if they choose.

From Digiday

Now Wisconsin is considering making it mandatory for parents who adopt overseas to have their children “re-adopted” in the state.

For example, at age 10, he completed the local two-year mandatory preparatory program in just one year.

And Americans overwhelmingly support eliminating mandatory minimum sentences for nonviolent drug offenders.

Thankfully, testing performers for STDs is mandatory—or so we thought.

Suspicion of exposure to Ebola, for example, is sufficient to justify mandatory isolation.

The requirement of conformity to this higher conventional standard becomes mandatory.

But the task has seemed mandatory as the manners of a people can not otherwise be fully understood.

German New Guinea (now a British mandatory) lies not far away.

At my final interview he said that he had had difficulty in preventing Congress from making the retaliatory resolution mandatory.

This was from some one acting as President Colbrith's secretary, and its wording was concisely mandatory.