Synonyms of necessary
82 similar words · 4 opposite words
Another word for necessary is needed. Other synonyms of necessary are required, basic, essential, indispensable and prerequisite. The opposite of necessary is unnecessary.
Synonyms and similar words for necessary
adjectiveRequired, essential, whether logically inescapable or needed in order to achieve a desired result...
- basicNecessary, essential for life or some process.
- essentialNecessary.
- indispensableAbsolutely necessary or requisite; that one cannot do without.
- necessarNecessary.
- necessitousNecessary; unavoidable.
- neededNecessary; being required.
- prerequisiteRequired as a prior condition of something else; necessary or indispensable.
- requiredNecessary; obligatory; mandatory.
- requisiteEssential, indispensable, required.
adjectiveUnavoidable, inevitable.
- inevitableImpossible to avoid or prevent.
- naturalAs expected; reasonable, normal; naturally arising from the given circumstances.
nounA place to do the "necessary" business of urination and defecation: an outhouse or lavatory.
- bathroom US
- latrine
- necessarium humorous
- toilet
- urinalA room or structure used for urination: a latrine; an outhouse; a lavatory.
- water closet UKA room containing a flush toilet.
- WC UK
- cloaca
- closet
- jacques
- kocayA place used for urination and defecation: a latrine; an outhouse; a lavatory.
- siege
- cludgie Scotland
- netty
- six
- facilities
- lavatory
- lavabo humorous, slangA lavatory: a room used for urination and defecation.
- necessary roomA toilet, a lavatory (the room, not the fixture).
- office of easeSynonym of usual offices.
- place
- potty
- small roomA lavatory: a room intended for urination and defecation.
- smallest roomThe lavatory: the room intended for urination and defecation.
- throne room humorous, slang
- cottage slangA public lavatory.
- geography
- khazi
- usual officesA place in which to urinate and defecate: an outhouse; a lavatory.
- amenities
- restroom
- washroom
- comfort room
- CRCredit.
- closet of decencyAn outhouse: an outbuilding used as a lavatory.
- closet of easeA room used to ease one's bowels: a lavatory.
- house of officeAn outhouse: an outbuilding used as a lavatory.
- necessary placeA place used for the business of urination and defecation: an outhouse or lavatory.
- purging place
- vault
- withdraught
- wardrobe
- shitter vulgarA toilet or lavatory; an outhouse.
- urination stationA place to urinate: a urinal or toilet.
- bog vulgar
- carseyA house.
- crapper vulgar
- karzy
- lats
- lav
- lavvy
- loo
- thunderboxAny lavatory or toilet, especially a rudimentary outdoor latrine or toilet, or an outhouse.
- canA toilet or lavatory.
- johnA device or place for urination and defecation: now usually a toilet or lavatory, but also (dated) a chamber pot or...
- boggerA lavatory: a room for urination and defecation.
- brasco
- dikeFormalwear or other fashionable dress.
- dunny
- jacks
- jakesA place to urinate and defecate: an outhouse or lavatory.
- toilet room dated
- neddy obsolete
- shield Scotland, obsolete
- ladies and gentlemen rare
- office archaic
- privy datedA lavatory: a room with a toilet.
- House of Lords dated, humorousA lavatory: a room used for urination and defecation.
- teahouse dated, slang
- tearoom dated, slangA public lavatory.
- johnny dated
Opposite of necessary
adjectiveRequired, essential, whether logically inescapable or needed in order to achieve a desired result...
- unnecessaryNot needed or necessary.
adjectiveUnavoidable, inevitable.
- evitablePossible to avoid; avertible.
- incidental
- impossible
Meaning of necessary
- adjective Required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.
- adjective Unavoidable, inevitable.
- adjective Determined, involuntary: acting from compulsion rather than free will.
necessary in other languages
Questions about synonyms of necessary
- What is another word for necessary?
- Necessary has 82 synonyms on Word.ws, such as needed, required, basic, essential, indispensable, prerequisite, requisite and natural.
- What is the opposite of necessary?
- The opposite of necessary is unnecessary.
- What does necessary mean?
- Necessary means required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.
Source and license
Adapted from Wiktionary: necessary (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.
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Cite this page: “Synonyms of necessary.” Word.ws, https://word.ws/synonyms/necessary. Based on Wiktionary, CC BY-SA 4.0.