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spurious

American  
[spyoor-ee-uhs] / ˈspjʊər i əs /

adjective

  1. not genuine, authentic, or true; not from the claimed, pretended, or proper source; counterfeit.

    Synonyms:
    deceitful, meretricious, phony, feigned, mock, bogus, sham, false
    Antonyms:
    genuine
  2. Biology. (of two or more parts, plants, etc.) having a similar appearance but a different structure.

  3. of illegitimate birth; bastard.


spurious British  
/ ˈspjʊərɪəs /

adjective

  1. not genuine or real

  2. (of a plant part or organ) having the appearance of another part but differing from it in origin, development, or function; false

    a spurious fruit

  3. (of radiation) produced at an undesired frequency by a transmitter, causing interference, etc

  4. rare illegitimate

"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 spurious

1590–1600; < Latin spurius bastard, perhaps < Etruscan; see -ous

Compare meaning

How does spurious compare to similar and commonly confused words? Explore the most common comparisons:

Explanation

Something false or inauthentic is spurious. Don't trust spurious ideas and stories. Spurious statements often are lies, just as a spurious coin is a counterfeit coin — a fake. Anytime you see the word spurious, you're dealing with things that can't be trusted or accepted at face value. A spurious claim is one that's not backed up by the facts. A spurious argument relies on faulty reasoning — and maybe some lies. Politicians often accuse each other of saying things that are spurious and meant to deceive the voters. As long as you're honest, clear, and not trying to trick anyone, nobody can say you're being spurious.

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Vocabulary lists containing spurious

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.

But the judge rejected that, finding the union's culpability was high and that it had "persuaded themselves of their own spurious argument".

From BBC • Mar. 17, 2026

As a 25-year high-school math teacher in Alameda, Calif., I’ve listened to all the specious, spurious, self-serving excuses for denying students and families educational choice.

From The Wall Street Journal • Mar. 12, 2026

Some security experts described the justification as spurious and nonsensical and said offshore wind is key to ensuring grid reliability and meeting broader U.S. energy goals.

From Los Angeles Times • Dec. 22, 2025

It’s not a spurious conclusion: Census data shows that the percentage of women aged 30–44 with no children is higher than it’s been since 1960.

From Salon • Jun. 16, 2025

Dr. Dadoo, president of the Transvaal Indian Congress, castigated the restrictions and dismissed the offer of parliamentary representation as “a spurious offer of a sham franchise.”

From "Long Walk to Freedom" by Nelson Mandela

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