necessary synonyms

necessary

modif.

  1. Essential

    essential, requisite, expedient, needful, indispensable, needed, required, urgent, wanted, imperative, prerequisite, exigent, pressing, vital, cardinal, fundamental, significant, momentous, compulsory, mandatory, basic, paramount, obligatory, essential, compelling, incumbent on, incumbent upon, all-important, nuts-and-bolts, binding, specified, unavoidable, decisive, crucial, elementary, quintessential, chief, principal, prime, intrinsic, fixed, constant, permanent, determinate, inherent, ingrained, innate, without choice, without appeal; see also important 1.

    Antonyms unimportant*, unessential*, insignificant. *

  2. Inevitable

    unavoidable, undeniable, assured; see certain 2, imminent, inevitable.

Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.