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necessary    音标拼音: [n'ɛsəs,ɛri]
a. 必须的,需要的,必然的,不可缺少的
n. 必需品

必须的,需要的,必然的,不可缺少的必需品

necessary
必要

necessary
adj 1: absolutely essential [ant: {unnecessary}, {unneeded}]
2: unavoidably determined by prior circumstances; "the necessary
consequences of one's actions"
n 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" [synonym: {necessity}, {essential}, {requirement},
{requisite}, {necessary}] [ant: {inessential},
{nonessential}]

Necessary \Nec"es*sa*ry\, a. [L. necessarius, from necesse
unavoidable, necessary; of uncertain origin: cf. F.
n['e]cessaire.]
1. Such as must be; impossible to be otherwise; not to be
avoided; inevitable.
[1913 Webster]

Death, a necessary end,
Will come when it will come. --Shak.
[1913 Webster]

2. Impossible to be otherwise, or to be dispensed with,
without preventing the attainment of a desired result;
indispensable; requisite; essential. "'T is necessary he
should die." --Shak.
[1913 Webster]

A certain kind of temper is necessary to the
pleasure and quiet of our minds. --Tillotson.
[1913 Webster]

3. Acting from necessity or compulsion; involuntary; --
opposed to {free}; as, whether man is a necessary or a
free agent is a question much discussed.
[1913 Webster]


Necessary \Nec"es*sa*ry\, n.; pl. {Necessaries}.
1. A thing that is necessary or indispensable to some
purpose; something that one can not do without; a
requisite; an essential; -- used chiefly in the plural;
as, the necessaries of life.
[1913 Webster]

2. A privy; a water-closet.
[1913 Webster]

3. pl. (Law) Such things, in respect to infants, lunatics,
and married women, as are requisite for support suitable
to station.
[1913 Webster]

94 Moby Thesaurus words for "necessary":
absolute, apodictic, backhouse, binding, bound, called for,
cardinal, certain, choiceless, clear, clear and distinct,
clear as day, closet, compelling, compulsory, conclusive,
constraining, crapper, de rigueur, decisive, definite, determinate,
dictated, essential, exigent, fated, fateful, fundamental,
imperative, imperious, important, importunate, indefeasible,
indicated, indispensable, ineluctable, ineludible, inerrable,
inerrant, inescapable, inevasible, inevitable, inexorable,
infallible, inflexible, involuntary, irreducible, irreductible,
irreplaceable, irresistible, irrevocable, jakes, mandatory,
momentous, must, necessitous, needed, needful, obligatory, office,
outhouse, peremptory, perfectly sure, positive, predestined,
predetermined, prerequisite, relentless, required, requisite,
resistless, significant, sure, sure as death, sure as fate,
sure-enough, true, unambiguous, unavoidable, uncontrollable,
undeflectable, unequivocal, unerring, unevadable, unforgoable,
univocal, unmistakable, unpreventable, unstoppable, unyielding,
urgent, vital, wanted, without choice



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