compulsory
adjective
[ kəmˈpʌls(ə)ri ]
• required by law or a rule; obligatory.
• "compulsory military service"
Similar:
obligatory,
mandatory,
required,
requisite,
necessary,
essential,
statutory,
prescribed,
imperative,
enforced,
demanded,
binding,
forced,
unavoidable,
inescapable,
incumbent,
enforceable,
contractual,
stipulated,
set,
de rigueur,
Origin:
early 16th century (as a noun denoting a legal mandate which had to be obeyed): from medieval Latin compulsorius, from compuls- ‘driven, forced’, from the verb compellere (see compel).
