requisite
I
adjective
basic, binding, called for, compulsory, crying, demanded, entailed, essential, exigent, expedient, imperative, important, in demand, incumbent on, indispensable, ineluctable, inevasible, instant, mandatory, must, necessahus, necessary, necessitated, needed, needful, obligatory, postulated, prerequisite, pressing, required, requisitory, urgent, vital, wanted
II
index
attornment, binding, burden, central (essential), compulsory, condition (contingent provision), demand, desideratum, essential (required), fundamental, imperative, important (urgent), indispensable, integral, mandatory, necessary (required), necessary, necessity, need (requirement), obligatory, positive (prescribed), prerequisite, primary, qualification (condition), requirement, requisition, reservation (condition), substantive, ultimatum, vital
Burton's Legal Thesaurus.
William C. Burton.
2006