Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

necessary

adjective

Synonyms and Antonyms of necessary

  1. 1 forcing one's compliance or participation by or as if by law <an emissions test is necessary before you can renew the registration for your car> Synonyms compulsory, forced, imperative, incumbent, involuntary, mandatory, nonelective, obligatory, peremptory, requiredRelated Words all-important, essential, indispensable, needed, requisite; insistent, persistent, pressing, urgent; demanded, enforced; coerciveNear Antonyms chosen, discretionary; dispensable, unnecessary, unneeded, unwanted; inconsequential, insignificant, nonessential, unimportantAntonyms elective, optional, voluntary

  2. 2 impossible to avoid or evade <taxes will always be a necessary evil> Synonyms certain, ineluctable, ineludible, inescapable, inevitable, sure, unavoidable, unescapableRelated Words decided, definite, settled; likely, possible, probable; destined, fated, foreordained, predestined, predetermined, preordained; inexorable, relentless, unremitting, unstoppableNear Antonyms preventable (also preventible); doubtful, dubious, questionable, shaky, unclear; undecided, unsettled; undependable, unreliable; improbable, unlikelyAntonyms avoidable, evadable, uncertain, unsure

  3. 3 impossible to do without <food and water are necessary for survival> Synonyms all-important, critical, imperative, indispensable, integral, must-have, essential, necessitous, needed, needful, required, requisite, vitalRelated Words prerequisite; compulsory, mandatory, nonelective, obligatory; consequential, crucial, important, major, material, meaningful, momentous, significant, substantial, weighty; basic, central, fundamental, key, organic; insistent, persistent, pressing, urgentNear Antonyms undesired, unwanted; inconsequential, insignificant, unimportant; excess, external, extra, extraneous, superfluous, surplusAntonyms dispensable, inessential, needless, nonessential, unessential, unnecessary, unneeded




necessary

noun

Synonyms and Antonyms of necessary

  1. something necessary, indispensable, or unavoidable <a modest income that provided the family with only the necessaries of life> Synonyms condition, demand, must, must-have, essential, necessity, need, needful, requirement, requisite, sine qua nonRelated Words precondition, prerequisite; advantage, edge, plus; desideration, desideratum, wishNear Antonyms amenity, comfort, extra, extravagance, frill, indulgence, luxury, superfluity, surplus, surplusageAntonyms nonessential, nonnecessity





Seen and Heard

What made you want to look up necessary? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 10, 2016

to put in good humor

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

kittly-benders spindrift pince-nez duvet
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ