necessary

adj 1: absolutely essential [ant: {unnecessary}]

2: unavoidably determined by prior circumstances; "the

necessary consequences of one's actions"

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},

{requisite}] [ant: {inessential}]