1. obligatory - Adjective
2. obligatory - Adjective Satellite
Binding in law or conscience; imposing duty or obligation; requiring performance or forbearance of some act; -- often followed by on or upon; as, obedience is obligatory on a soldier.
Source: Webster's dictionaryattendance is obligatory Source: Internet
an obligatory contribution Source: Internet
he made all the obligatory apologies Source: Internet
Among other measures, he completely halted all public grants to the obligatory unemployment insurance introduced in 1927, resulting in workers making higher contributions and fewer benefits for the unemployed. Source: Internet
“Contrary to what is often said, secular education is not obligatory in France, it is school that is obligatory,” she added. Source: Internet
Although the United Kingdom uses the metric system for most administrative and trade purposes, Imperial units are widely used by the public and are permitted or obligatory for some purposes, such as road signs. Source: Internet