1. the quality or state of being compulsory; the fact of being required or mandatory

Examples

• The compulsoriness of the new safety regulations was debated by industry leaders.
• Students questioned the compulsoriness of attending the assembly.
• The compulsoriness of military service varies by country.
• Due to the compulsoriness of the law, all citizens must comply.
• The compulsoriness of the dress code was strictly enforced in the workplace.
• Parents appreciated the compulsoriness of health insurance coverage for their children.