Choose the perfect synonym or antonym for the word Something that must be done or is required by law or rules.
Compulsory
/kəmˈpʌlsəri/Synonyms:
Antonyms:
Examples:
They had made science compulsory for the school certificate.Modern languages are compulsory too.Attendance at the seminar is compulsory for all freshmen.
Etymology:
From late Middle English (in the sense using force): from medieval Latin compulsorius, from compuls- ‘driven, forced’, from the verb compellere.
Usage Statistics:
45 mentions per 1 million words 
Hint: Frequency according to COCA
Often
Hint: Frequency according to COCA
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