Synonyms for requirement

noun

1. A prerequisite

   condition, preliminary condition, essential, imperative, element, requisite, provision, indispensable provision, terms, necessity, stipulation, fundamental, first principle, precondition, reservation, specification, proviso, qualification, vital part, sine qua non (Latin), desideratum, must*; see also basis 1.

2. A need

   necessity, necessary, lack, want, demand, call, claim, obsession, preoccupation, prepossession, engrossment, stress, extremity, exigency, pinch, obligation, pressing concern, urgency, compulsion, exaction, requisition.