- being essential, indispensable, or requisite: a necessary part of the motor.
- happening or existing by necessity: a necessary change in our plans.
- acting or proceeding from compulsion or necessity; not free; involuntary: a necessary agent.
- (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).
- something necessary or required for a particular purpose; necessity.
- necessaries, Law. food, clothing, etc., required by a dependent or incompetent and varying with his or her social or economic position or that of the person upon whom he or she is dependent.
- Chiefly New England. a privy or toilet.
Origin of necessary
Synonyms for necessarySee more synonyms for on Thesaurus.com
Antonyms for necessary
Related Words for necessariesprecondition, requisite, prerequisite, requirement, fundamental, obligation, essential, urgency, duty, right, necessary, commitment, charge, imperative, need, condition, devoir, committal, claim, privation
Examples from the Web for necessaries
Historical Examples of necessaries
Our country abounds in the necessaries, the arts, and the comforts of life.
Who fetches you your silks, and your linens, and your wines, and all the other necessaries of life?Joseph Andrews, Vol. 2
The produce of the farm is amply sufficient to provide them with all necessaries.Brighter Britain! (Volume 1 of 2)
William Delisle Hay
He left me only to go in quest of the necessaries for our journey.The Shame of Motley
Victuals and other necessaries of life had long since been running low.The Life of Cesare Borgia
- (sometimes singular) what is needed; essential itemsthe necessaries of life
- law food, clothing, etc, essential for the maintenance of a dependant in the condition of life to which he or she is accustomed
- needed to achieve a certain desired effect or result; required
- resulting from necessity; inevitablethe necessary consequences of your action
- (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 affairsCompare sufficient (def. 2)
- 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
- the necessary informal the money required for a particular purpose
- do the necessary informal to do something that is necessary in a particular situation
Word Origin for necessary
late 14c. "needed, required, essential, indispensable," from Old French necessaire "necessary, urgent, compelling" (13c.), and directly from Latin necessarius "unavoidable, indispensable, necessary," from necesse "unavoidable, indispensable," originally "no backing away," from ne- "not" + cedere "to withdraw, go away, yield" (see cede). The root sense is of that from which there is no evasion, that which is inevitable. Necessary house "privy" is from c.1600. Necessary evil is from 1540s (the original reference was to "woman").
mid-14c., "needed, required, or useful things; the necessities of life; actions determined by right or law," perhaps from Old French necessaire (n.) "private parts, genitalia; lavatory," and directly from Latin necessarius (n.), in classical Latin "a relation, relative, kinsman; friend, client, patron;" see necessary (adj.).