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necessary

see definition of necessary
  • adjessential
  • adjinevitable
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Synonyms for necessary

adj essential
  • basic
  • crucial
  • decisive
  • fundamental
  • imperative
  • indispensable
  • mandatory
  • needed
  • paramount
  • required
  • significant
  • unavoidable
  • urgent
  • vital
  • binding
  • cardinal
  • chief
  • expedient
  • prerequisite
  • pressing
  • prime
  • principal
  • requisite
  • all-important
  • bottom-line
  • compelling
  • compulsory
  • de rigueur
  • elementary
  • exigent
  • incumbent on
  • momentous
  • name of game
  • needful
  • obligatory
  • quintessential
  • specified
  • wanted

Antonyms for necessary

  • additional
  • extra
  • inessential
  • minor
  • nonessential
  • optional
  • secondary
  • trivial
  • unimportant
  • unnecessary
  • voluntary
  • insignificant
  • contingent
  • needless
  • useless
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

More words related to necessary

automatic

adjective. occurring as natural consequence
  • assured
  • certain
  • inescapable
  • inevitable
  • necessary
  • routine
  • unavoidable

basal

adjective. basic

basic

adjective. elementary, fundamental

bottom line

adjective. of key importance

compulsory

adjective. binding

crucial

adjective. critical, important
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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