There is no adjective form of the noun 'necessity'.
A related adjective is necessary.
necessary
books
The adjective form of necessity is necessary.
NECESSITY - a requirement or requisite item or action (noun form of adjective necessary)
Necessity as a noun means anything indispensable or essential; necessarily is the adverbial form, while the verb form, necessitate, means to make necessary (noun or adjective), to cause to be needed, as in:My working shorter hours will necessitate some cuts to the household budget, but this isn't necessarily a bad thing if we just don't buy what wasn't a necessity in the first place: if it wasn't a necessary item, we didn't need it.
The word required is the past participle, past tense of the verb to require; the past participle of the verb is also an adjective.Examples:You are required to pay at the time of service. (verb)I have the required credits to take this course. (adjective)
necessity, chief, manager
necessity
The adjective form of necessity is necessary.
Necessary is an adjective (needed, required).There are related nouns: need and necessity.
In Common usage:Necessity is a noun which means 'a thing that is needed'. Necessary is an adjective which means 'needed'. Thus, "necessity" means "necessary thing".In Philosophy:"Necessary" is an adjective meaning "cannot be otherwise" (as opposed to "Contingent" which means "can possibly be otherwise"). "Necessity" is a noun meaning "something which cannot be otherwise".
The word necessary is an adjective and so doesn't have a plural noun. The noun form is necessity and the plural is necessities.
The word necessary is an adjective and so doesn't have a plural noun. The noun form is necessity and the plural is necessities.
The plural of "necessary" is spelled "necessaries."
The possessive form of the noun necessity is necessity's.
Twitter is not a necessity.
The plural of necessity is necessities.
necessity
necessity