necessary :: Lexipedia - Where words have meaning

need, requirement, necessity, essential, requisite

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"

necessary

adj. unavoidably determined by prior circumstances; "the necessary consequences of one's actions"

necessary

adj. absolutely essential

condition, status

n. a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations"

necessity

n. the condition of being essential or indispensable

prerequisite, requirement

n. something that is required in advance; "Latin was a prerequisite for admission"

order

n. established customary state (especially of society); "order ruled in the streets"; "law and order"

fundamental, fundamental frequency, first harmonic

n. the lowest tone of a harmonic series

basic, staple

n. (usually plural) a necessary commodity for which demand is constant

mandatory, compulsory, required

adj. required by rule; "in most schools physical education is compulsory"; "attendance is mandatory"; "required reading"

prerequisite

adj. required as a prior condition or course of study

constitutional, integral, inherent, built-in, inbuilt

adj. existing as an essential constituent or characteristic; "the Ptolemaic system with its built-in concept of periodicity"; "a constitutional inability to tell the truth"

cardinal, central, key, fundamental, polar, primal

adj. serving as an essential component; "a cardinal rule"; "the central cause of the problem"; "an example that was fundamental to the argument"; "computers are fundamental to modern industrial structure"

component, constituent

adj. constitutional in the structure of something (especially your physical makeup)

imperative

adj. requiring attention or action; "as nuclear weapons proliferate, preventing war becomes imperative"; "requests that grew more and more imperative"

certain, sure, ineluctable, inescapable, unavoidable

adj. impossible to avoid or evade:"inescapable conclusion"; "an ineluctable destiny"; "an unavoidable accident"

essential

adj. basic and fundamental; "the essential feature"

indispensable

adj. not to be dispensed with; essential; "foods indispensable to good nutrition"

obligatory

adj. morally or legally constraining or binding; "attendance is obligatory"; "an obligatory contribution"

inessential

n. anything that is not essential; "they discarded all their inessentials"

etcetera, etceteras, extra, extras

n. additional unspecified odds and ends; more of the same; "his report was full of etceteras"

unnecessary, unneeded

adj. not necessary

optional

adj. possible but not necessary; left to personal choice

gratuitous, needless, uncalled-for

adj. unnecessary and unwarranted; "a strikers' tent camp...was burned with needless loss of life"

inessential, nonessential, dispensable

adj. not absolutely necessary

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