extraneous

[ik-strey-nee-uhs]
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adjective
  1. introduced or coming from without; not belonging or proper to a thing; external; foreign: extraneous substances in our water.
  2. not pertinent; irrelevant: an extraneous remark; extraneous decoration.

Origin of extraneous

1630–40; < Latin extrāneus external, foreign, equivalent to extr(a)- extra- + -ān(us) -an + -eus -eous
Related formsex·tra·ne·ous·ly, adverbex·tra·ne·ous·ness, nounnon·ex·tra·ne·ous, adjectivenon·ex·tra·ne·ous·ly, adverbnon·ex·tra·ne·ous·ness, nounun·ex·tra·ne·ous, adjectiveun·ex·tra·ne·ous·ly, adverb
Can be confusedextraneous external extrinsic internal intrinsic

Synonyms for extraneous

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Antonyms for extraneous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for extraneous

extraneous

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
Derived Formsextraneously, adverbextraneousness, noun

Word Origin for extraneous

C17: from Latin extrāneus external, from extrā outside
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

Word Origin and History for extraneous
adj.

1630s, from Latin extraneus "external, strange," from extra "outside of" (see extra-).

Online Etymology Dictionary, © 2010 Douglas Harper