imperative
I
adjective
compulsory, critical, crucial, demanding, essential, exigent, impero, indispensable, mandatory, necessary, needful, obligatory, pressing, required, requiring immediate attention, requisite, unavoidable, urgent
associated concepts: imperative power, imperative statute, imperative trust
II
index
binding, canon, charge (command), compelling, compulsory, critical (crucial), crucial, decisive, decree, dictate, dictatorial, direction (order), directive, exigent, grave (important), important (urgent), indispensable, injunction, insistent, mandate, mandatory, necessary (required), necessity, obligatory, order (judicial directive), ordinance, positive (prescribed), pronouncement, requirement, requisite, subpoena, unavoidable (inevitable), urgent
Burton's Legal Thesaurus.
William C. Burton.
2006