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necessary
[ nes-uh-ser-ee ]
adjective
- essential, indispensable, or requisite:
The rotor is a necessary part of the motor.
Synonyms: needed
Antonyms: dispensable
- happening or existing by necessity:
The snow has forced a necessary change in our plans.
- acting or proceeding from compulsion or necessity; not free; involuntary:
a necessary agent.
- Logic.
- (of a proposition) such that a denial of it involves a self-contradiction.
- (of an inference or argument) such that its conclusion cannot be false if its supporting premises are true.
- (of a condition) such that it must exist if a given event is to occur or a given thing is to exist. Compare sufficient ( def 2 ).
noun
- something necessary or required for a particular purpose; necessity.
Synonyms: essential, requisite, requirement
- necessaries, Law. food, clothing, etc., required by a dependent person and varying with their social or economic position or that of the person upon whom they are dependent.
- Chiefly New England. a privy or toilet.
necessary
/ ˈnɛsɪsərɪ /
adjective
- needed to achieve a certain desired effect or result; required
- resulting from necessity; inevitable
the necessary consequences of your action
- logic
- (of a statement, formula, etc) true under all interpretations or in all possible circumstances
- (of a proposition) determined to be true by its meaning, so that its denial would be self-contradictory
- (of a property) essential, so that without it its subject would not be the entity it is
- (of an inference) always yielding a true conclusion when its premises are true; valid
- (of a condition) entailed by the truth of some statement or the obtaining of some state of affairs Compare sufficient
- philosophy (in a nonlogical sense) expressing a law of nature, so that if it is in this sense necessary that all As are B, even although it is not contradictory to conceive of an A which is not B, we are licensed to infer that if something were an A it would have to be B
- rare.compelled, as by necessity or law; not free
noun
- the necessary informal.the necessary the money required for a particular purpose
- do the necessary informal.do the necessary to do something that is necessary in a particular situation
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Other Words From
- neces·sari·ness noun
- quasi-neces·sary adjective
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Word History and Origins
Origin of necessary1
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Word History and Origins
Origin of necessary1
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Synonym Study
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Example Sentences
He could order the Justice Department to begin the necessary regulatory work.
Yet, what my peers do not realize – or cannot handle – is that rejection is a necessary part of forging a romantic relationships.
But as is her way, Kaling defended why the episode was not only funny, but necessary.
Unfortunately, the underground tunnels that were used to transport booze and, if necessary, escaping patrons, are off-limits.
However, we have just had a necessary wake-up call that all is not as secure as we believed.
In sorting notes it is necessary to be able readily to distinguish between notes of this bank and notes of other reserve banks.
As long as may be necessary, Sam,” replied Mr. Pickwick, “you have my full permission to remain.
But it was necessary to take Silan, which the rebels hastened to strengthen, closely followed up by the Spaniards.
For this use of the voice in the special service of will-power, or propelling force, it is necessary first to test its freedom.
It is only necessary to have a zinc, or a galvanized tray on which to stand the glass in an inverted position.
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