essential
essential [adj]
1. absolutely necessary; vitally necessary; "essential tools and materials"; "funds essential to the completion of the project"; "an indispensable worker"
2. basic and fundamental; "the essential feature"
3. of the greatest importance; "the all-important subject of disarmament"; "crucial information"; "in chess cool nerves are of the essence"
4. being or relating to or containing the essence of a plant etc; "essential oil"
5. defining rights and duties as opposed to giving the rules by which rights and duties are established; "substantive law"
essential [noun]
1. 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"
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noun
necessity, requirement, requisite, necessary
adj
necessary, needed, mandatory, fundamental, basic, intrinsic, inherent, principal, main, key, characteristic, definitive, crucial, indispensable, vital, requisite, required
adj
inessential
noun
inessential
