- The definition of necessary is being essential or required.
An example of necessary is a high school diploma or GED to obtain college admittance.
A high school diploma is necessary for admission to college.
- that cannot be dispensed with; essential; indispensable: the nutriments necessary to life
- resulting from necessity; inevitable: a necessary result
- that must be done; mandatory; not voluntary
- not free to choose; compelled by circumstances: a necessary agent
- inherent in the situation; undeniable; unavoidable from the premises
- Archaic rendering some essential and intimate service
Origin of necessaryMiddle English ; from Classical Latin necessarius ; from necesse, unavoidable, necessary ; from ne-, not + cedere, to give way: see cede
- a necessary thing; thing essential to life, some purpose, etc.: often used in pl.
- Dialectal a privy or toilet
- Law those things essential to maintaining a dependent or incompetent in comfort and well-being
- Needed or required: a contract complete with the necessary signatures; conditions necessary to life. See Synonyms at indispensable.
- a. Unavoidably determined by prior conditions or circumstances; inevitable: the necessary results of overindulgence.b. Logically inevitable: a necessary conclusion.
- Required by obligation, compulsion, or convention: made the necessary apologies.
Origin of necessaryMiddle English necessarie, from Old French necessaire, from Latin necessārius, from necesse; see ked- in Indo-European roots.
(comparative more necessary, superlative most necessary)
- (archaic, UK) bathroom, toilet, loo
From Middle English necessarye, from Old French necessaire, from Latin necessārius (“unavoidable, inevitable, indispensable, requisite”), from necesse (“unavoidable, inevitable, indispensable”), neuter adjective with esse and habeō (“I have”), probably originating from ne cessum or non cessum, from ne (“not”) + cessus, perfect passive participle of cēdō (“I yield”); see cede.