An Encylopedia Britannica Company

January 23, 2019 Word of the Day

mandatory /ˈmændəˌtori/ adjective
mandatory
/ˈmændəˌtori/
adjective
In many cities, recycling is mandatory.
In many cities, recycling is mandatory.
Definition of MANDATORY

: required by a law or rule

  • This meeting is mandatory for all employees. [=all employees must go to this meeting]

  • The mandatory fine for littering is $200. [=everyone caught littering must pay $200]

  • a mandatory retirement age [=an age at which workers are required to retire]

  • a mandatory drug test

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