B2adjectiveformallawwork
US/ˈmæn.də.tɔːr.i/
UK/ˈmæn.də.tər.i/
required by a rule or law, so you must do it
In context
Wearing a helmet is mandatory for all motorbike riders.
Attendance at the safety training is mandatory for new staff.
The government made vaccination mandatory for health workers.
Words that go with mandatory
adjective + noun
- mandatory trainingMandatory training takes place every spring.
- mandatory requirementA passport is a mandatory requirement for entry.
- mandatory sentenceThe judge had to give a mandatory sentence.
- mandatory military serviceMandatory military service ends at age twenty-five there.
- mandatory attendanceMandatory attendance applies to all lectures.
adjective + preposition
- mandatory forSeat belts are mandatory for all passengers.
Common mistakes
Incorrect:
Wearing a uniform is mandatory to us.Correct: Wearing a uniform is mandatory for us.