necessary

Definitions

  • A cut here and there will be necessary
    A cut here and there will be necessary
  • WordNet 3.6
    • adj necessary unavoidably determined by prior circumstances "the necessary consequences of one's actions"
    • adj necessary absolutely essential
    • n necessary 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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Webster's Revised Unabridged Dictionary
  • Interesting fact: The external tank on space shuttles is not painted. It is the only part of the shuttle that is lost after launch, so it is not necessary to worry about metal corrosion.
    • Necessary A privy; a water-closet.
    • Necessary 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.
    • Necessary Acting from necessity or compulsion; involuntary; -- opposed to free; as, whether man is a necessary or a free agent is a question much discussed.
    • Necessary 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.""A certain kind of temper is necessary to the pleasure and quiet of our minds."
    • Necessary Such as must be; impossible to be otherwise; not to be avoided; inevitable. "Death, a necessary end,
      Will come when it will come."
    • Necessary (Law) Such things, in respect to infants, lunatics, and married women, as are requisite for support suitable to station.
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Century Dictionary and Cyclopedia
  • Interesting fact: The Pentagon, in Arlington, Virginia, has twice as many bathrooms as is necessary. When it was built in the 1940s, the state of Virginia still had segregation laws requiring separate toilet facilities for blacks and whites
    • necessary Such as must be; that cannot be otherwise. As an inference, evidently of such a form that every like inference from true premises will always yield a true conclusion, in every state of facts. In philosophy it is requisite to distinguish an irresistible inference, the force of which may be blindly felt, from a necessary one, which is seen to belong to a possible class of inferences, all true.
    • necessary Such that it cannot be disregarded or omitted; indispensable; requisite; essential; needful; required: as, air is necessary to support animal life; food is necessary to nourish the body.
    • necessary In law:
    • necessary Requisite for reasonable convenience and facility or completeness in accomplishing the purpose intended: as, the land necessary for building a railroad.
    • necessary Naturally and inseparably connected in the ordinary course: as, necessary consequences. Thus, the necessary consequences of a trespass, such as depreciation in value of a thing injured, or the suffering of a person injured, are general damages, and need not be pleaded; but loss of profits or medical expenses are not necessary consequences in the legal sense, and must be specially alleged.
    • necessary Acting from compulsion or the absolute determination of causes: opposed to free. See free.
    • necessary Synonyms Necessary, Essential, Requisite, Needful. The following remarks refer to the application of the words to ordinary practical affairs, not to philosophy. Necessary is so general a word that it covers all the others, and has the additional sense, which they do not have, of inevitable. Essential is an absolute word, noting that which is a part of the chief end of the action, or of every mode of bringing that end about. Requisite is less strong than essential, and needful is less strong still; yet each is strong and emphatic, applying to that which is imperatively needed. Needful generally applies to concrete, and often to temporary, things: as, knowledge of the countries visited is requisite, and even essential, to enjoyment of travel, but money is needful in order to be able to travel at all. Needful is often applied to that which must be supplied to produce or effect a perfect state or action.
    • n necessary Anything that is necessary or indispensable; that which cannot be disregarded or omitted: as, the necessaries of life.
    • n necessary A privy; a water-closet.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Alcohol beverages have all 13 minerals necessary for human life
    • adj Necessary nes′es-sar-i that must be: that cannot be otherwise: unavoidable: indispensable: under compulsion: not free
    • n Necessary that which cannot be left out or done without (food, &c.)—used chiefly in pl.: a privy
    • ***

Quotations

  • Bill Cosby
    Bill%20Cosby
    “A word to the wise isn't necessary, it is the stupid ones who need all the advice.”
  • Ernest Hemingway
    Ernest%20Hemingway
    “As you get older it is harder to have heroes, but it is sort of necessary.”
  • Traditional Saying
    Traditional Saying
    “For those who believe, no proof is necessary. For those who don't believe, no proof is possible.”
  • John H. Patterson
    John H. Patterson
    “To succeed in business it is necessary to make others see things as you see them.”
  • Lucius C. Falkland
    Lucius C. Falkland
    “When it is not necessary to change, it is necessary not to change.”
  • Giuseppe Tomasi Di Lampedusa
    Giuseppe Tomasi Di Lampedusa
    “If we want everything to remain as it is, it will be necessary for everything to change.”

Etymology

Webster's Revised Unabridged Dictionary
L. necessarius, from necesse, unavoidable, necessary; of uncertain origin: cf. F. nécessaire,

Usage

In literature:

Why have the excuses been necessary?
"Kept in the Dark" by Anthony Trollope
There seems a universal instinct which teaches that certain stretches, expansions and deep breathings are necessary at this time.
"How to Add Ten Years to your Life and to Double Its Satisfactions" by S. S. Curry
In this design, stays were necessary and were found, as always, to be an element to be avoided wherever possible.
"Steam, Its Generation and Use" by Babcock & Wilcox Co.
After the surface has been ground several times, it may be necessary to reharden the steel.
"On Laboratory Arts" by Richard Threlfall
Death is the necessary result of Imperfection, and the necessary end of it.
"Natural Law in the Spiritual World" by Henry Drummond
The treatment is simple, soft feed alone often being all that is necessary.
"Special Report on Diseases of the Horse" by United States Department of Agriculture
Give the child the necessary advice and instructions as soon as necessary.
"Searchlights on Health: Light on Dark Corners" by B.G. Jefferis
To produce yarn of the woolen type a set of machinery entirely different from that used in worsted manufacture is necessary.
"Textiles" by William H. Dooley
But to render radiant heat fit to affect the optic nerve a certain temperature is necessary.
"Fragments of science, V. 1-2" by John Tyndall
I have not deemed it necessary to make a separate report.
"A Report of the Debates and Proceedings in the Secret Sessions of the Conference Convention" by Lucius Eugene Chittenden
High temperature necessary to its composition, 77.
"Langstroth on the Hive and the Honey-Bee" by L. L. Langstroth
She may be informed that her condition is bad, and that it will be necessary that she submit to a course of treatment.
"The Eugenic Marriage, Vol 2 (of 4)" by W. Grant Hague
Rule by law, however, though necessary, is not a necessary evil but an invaluable benefit.
"The Life of Sir James Fitzjames Stephen, Bart., K.C.S.I." by Sir Leslie Stephen
Knowledge of the subject is not always necessary.
"Social Life" by Maud C. Cooke
First, it will be necessary to procure the lumber.
"Boys' Book of Model Boats" by Raymond Francis Yates
Few of these important and necessary factors in the production ever appear before the public.
"Great Singers on the Art of Singing" by James Francis Cooke
All dark days are necessary.
"Geography and Plays" by Gertrude Stein
Now Plato did not clearly make this distinction between necessary and non-necessary knowledge.
"A Critical History of Greek Philosophy" by W. T. Stace
On the next day Mr. Traffick arrived, whose coming had probably made it necessary that the news should be told.
"Ayala's Angel" by Anthony Trollope
Then it is necessary to deprive the categories of all their characteristic properties.
"The Elementary Forms of the Religious Life" by Emile Durkheim
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In poetry:

It tells me when I am to eat,
Which isn't necessary;
When food with me is obsolete,
I'll be a reliquary.
"The Little Clock" by Hattie Howard
Whene'er thou purposest to take a bride,
Beg thou of God his necessary aid:
A Raphael then thy wandring steps shall guide,
And lead thee to the most accomplish'd maid.
"Stanza's Concerning Some Persons And Things, That Are Mentioned In The Holy Scriptures" by Rees Prichard
Though God is able to preserve all those,
Who have this necessary work delay'd:
Yet there is no small reason to suppose,
That few are sav'd, without their pastor's aid.
"An Admonition To The Sick To Call For A Clergyman And A Physician, And To Shun All Charms, &c. &c." by Rees Prichard
Thou needs must see, that Christ's beyond compare,
Much better, and more necessary far,
Than all the world, and ev'ry transient joy,
To save thy soul from danger and annoy.
"Advice, To Search For The Lord Jesus Christ" by Rees Prichard
Under their shadows the pitiful subalterns are sleeping;
The moon is usual; the necessary lovers touch;
The river is alone and the trampled flower;
And through years of absolute cold
"As We Like It" by W H Auden
What is so real as the cry of a child?
A rabbit's cry may be wilder
But it has no soul.
Sugar can cure everything, so Kindness says.
Sugar is a necessary fluid,
Its crystals a little poultice.
"Kindness" by Sylvia Plath

In news:

No purchase is necessary to enter or win this Contest.
Friendships are casual, spouses are paired and relationships never grow beyond being a necessary part of life.
The move was made necessary with D Wade Redden returning from a shoulder injury last night.
For example,Baxt Cosmedical re-opened Nov 2 and Dr Rebecca Baxt will be there as long as necessary for any dermatology issues, said the company.
Hezbollah's leader, seen by video last month in Beirut, says it is 'necessary' to respond to commander Mughniyah's killing.
If he were doing his job, that wouldn't be necessary.
1) Drugs should only be used when necessary.
turns personal style into necessary viewing for the industry elite and everyone else.
Yelling isn't necessary to earn respect or exert authority (Photo credit: Microsoft Free Clip Art).
Nature offers me a necessary resistance that I find cha...
Even so, we've been guilty of still doing it now, especially on those days when it's necessary to see all the polish options before settling on just one.
Debbie Harry steps out on her own with her new solo album, Necessary Evil.
Foreclosing on the generating plant in Conklingville would more than provide necessary revenue for both counties.
In a Tuesday morning news conference, the Senator said the first bill was flawed but necessary.
Plaquemines Parish officials say they're prepared to use barges to supply fresh water to processing plants in Port Sulphur, Dalcour and Pointe-a-la-Hache if necessary.
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In science:

If necessary, the functions p1 and p2 may be chosen having the form which prevents the jumps of Ω and F when the noise is activating.
Exactly solvable models of quantum mechanics including fluctuations in the framework of representation of the wave function by random process
Indexes µ, ν are elements of a certain set M. A necessary and sufficient condition for operators Gµ to exist is that the function Γµν is positive definite [BS2], i.e.
Gaussian Random Matrix Models for q-deformed Gaussian Random Variables
While this is a sufficient condition on successful termination, the necessary one may indeed be weaker.
Interfacing Constraint-Based Grammars and Generation Algorithms
Necessary conditions on coefficients are obtained from the series expansions of standard kernel functions.
A note on interpolation in the generalized Schur class
The point of statement (3) in the preceding corollary is that no stronger necessary condition can be obtained from the other matrices in (3.3).
A note on interpolation in the generalized Schur class
By the necessary conditions for Problem I discussed above, Ij − Tj T ∗ j has κ negative eigenvalues for all sufficiently large j .
A note on interpolation in the generalized Schur class
To answer the question, first of all it is necessary to specify which particle dynamics are considered as equivalent ones.
Point particle in general background fields and generalized equivalence principle
When the second case occurs, by replacing p by r if necessary, we may assume that r lies between p and q .
Sextactic points on a simple closed curve
Then G(x) = |x|−2γ The integral (9) could be calculated explicitly but this is not necessary.
Quantum propagators in a random metric
This step is necessary in order to obtain the galaxy-galaxy correlation.
A simple model of the hierarchical formation of galaxies
This classification will be necessary to prove (in sect. 5) that a quite general model of non-Riemannian gravity yelds a Proca- type equation for the Weyl 1-form Q.
On the solutions of the Cartan equation in Metric Affine Gravity
Surveys of different sizes and depths are necessary to cover a wide dynamic range in flux with enough source statistics, which justified performing a variety of independent surveys at different flux limits.
High-Redshift Galaxies: The Far-Infrared and Sub-Millimeter View
While it is possible to choose a particular random V (x) satisfying this property and compute the Hamiltonian (14), it is not necessary to do so.
Integer Quantum Hall Transition and Random SU(N) Rotation
In the process of quantization of a symplectic manifold (M , ω ) it is necessary to fix a polarization I , then the corresponding quantization QI is the space of the sections of a prequantum bundle L, which are parallel along the leaves of the polarization I .
Hamiltonian symplectomorphisms and the Berry phase
Only small density fluctuations are necessary to overcome a (presumably) small free energy barrier for the formation of the critical nucleus.
Phase Behavior of a Simple Model for Membrane Proteins
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