extraneous
Americanadjective
-
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
-
not pertinent; irrelevant.
an extraneous remark; extraneous decoration.
- Synonyms:
- superfluous, nonessential, inappropriate
adjective
-
not essential
-
not pertinent or applicable; irrelevant
-
coming from without; of external origin
-
not belonging; unrelated to that to which it is added or in which it is contained
Other Word Forms
- extraneously adverb
- extraneousness noun
- nonextraneous adjective
- nonextraneously adverb
- nonextraneousness noun
- unextraneous adjective
- unextraneously adverb
Etymology
Origin of extraneous
First recorded in 1630–40; from Latin extrāneus “external, foreign,” equivalent to extr(a)- extra- + -ān(us) -an + -eus -eous
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.
These highly automated sites run 24/7 and can’t afford even tiny traces of extraneous gases or chemicals to contaminate their precision production, says Liu.
From The Wall Street Journal • Mar. 17, 2026
Ellie’s choppy boat ride, the rogue wave washing her ashore, her capture and release at the hands of the cult — all were colorful and dramatic but felt abrupt and even extraneous to the story.
From Los Angeles Times • May 26, 2025
"He was just quietly sitting there, taking script pages out, cutting them up, removing extraneous stuff like scene descriptions, and then sticking them back onto blank pages," he said.
From BBC • Mar. 1, 2025
For an even more extraneous cinematic reference, Barry Keoghan reprises his role from Banshees of Inisherin for Squarespace … a service that sells a domain-making tool.
From Slate • Feb. 10, 2025
And whatever extraneous influence the tannery may have exercised, the calamities of the land belong to it alone, born of wind and rain and weather, immensities not to be tempered by man or his creations.
From "Nectar in a Sieve" by Kamala Markandaya
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
