Word.ws English Dictionary

Synonyms of unnecessary

5 similar words · 4 opposite words

Another word for unnecessary is needless. Other synonyms of unnecessary are superfluous, additional and unneeded. The opposite of unnecessary is necessary.

Synonyms and similar words for unnecessary

adjectiveNot needed or necessary.

adjectiveDone in addition to requirements; unrequired.

Opposite of unnecessary

adjectiveAntonym(s) of “not needed”.

  • necessaryRequired, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.
  • neededNecessary; being required.

adjectiveAntonym(s) of “in addition to requirements”.

Meaning of unnecessary

  1. adjective Not needed or necessary.
  2. adjective Done in addition to requirements; unrequired.

Full definition of unnecessary

unnecessary in other languages

Questions about synonyms of unnecessary

What is another word for unnecessary?
Unnecessary has 5 synonyms on Word.ws, such as needless, superfluous, additional and unneeded.
What is the opposite of unnecessary?
The opposite of unnecessary is necessary. Other antonyms of unnecessary are needed and required.
What does unnecessary mean?
Unnecessary means not needed or necessary.

Source and license

Adapted from Wiktionary: unnecessary (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 unnecessary.” Word.ws, https://word.ws/synonyms/unnecessary. Based on Wiktionary, CC BY-SA 4.0.