requisite
adj : necessary for relief or supply; "provided them with all
things needful" [syn: {needed}, {needful}, {required}]
n : anything indispensable; "food and shelter are necessities of
life"; "the essentials of the good life"; "allow farmers
to buy their requirements under favorable conditions"; "a
place where the requisites of water fuel and fodder can
be obtained" [syn: {necessity}, {essential}, {requirement},
{necessary}] [ant: {inessential}]