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Synonyms

extraneous

American  
[ik-strey-nee-uhs] / ɪkˈstreɪ ni əs /

adjective

  1. introduced or coming from without; not belonging or proper to a thing; external; foreign.

    extraneous substances in our water.

    Synonyms:
    alien, adventitious, extrinsic
    Antonyms:
    intrinsic
  2. not pertinent; irrelevant.

    an extraneous remark; extraneous decoration.

    Synonyms:
    superfluous, nonessential, inappropriate
    Antonyms:
    relevant, pertinent

extraneous British  
/ ɪkˈstreɪnɪəs /

adjective

  1. not essential

  2. not pertinent or applicable; irrelevant

  3. coming from without; of external origin

  4. not belonging; unrelated to that to which it is added or in which it is contained

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of extraneous

First recorded in 1630–40; from Latin extrāneus “external, foreign,” equivalent to extr(a)- extra- + -ān(us) -an + -eus -eous

Explanation

Extraneous means coming from the outside, like the extraneous noise you hear when you're in a theater and a train passes by. Extraneous can also mean not relevant or essential, like all the extraneous information in your long-winded science report. In Latin, extra means outside, as in extraordinary "outside the ordinary," or extraterrestrial 'coming from outside earth.' (Bonus points––ding! ding!––if you knew that terra is Latin for "earth.") The meaning of extraneous also extends to more abstract things that come from the outside: extraneous details are ones that don't matter.

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Vocabulary lists containing extraneous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Extraneous dancers and supernumeraries flood Phelim McDermott’s production at the Met.

From New York Times • May 6, 2024

Extraneous items tend to fill up the visual space.

From Seattle Times • May 16, 2023

Extraneous details and exaggerations could make you easier to dismiss.

From Seattle Times • Dec. 19, 2022

Extraneous to the novel itself, but not irrelevant to its fate, is the seven-figure advance that is said to have resulted from a ten-bidder auction before last year’s London Book Fair.

From The New Yorker • May 23, 2016

Testing-Glass for Extraneous Matter in Milk 62 7.—

From The Bacillus of Long Life a manual of the preparation and souring of milk for dietary purposes, together with and historical account of the use of fermente by Douglas, Loudon

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