impugn

verb

im·​pugn im-ˈpyün How to pronounce impugn (audio)
impugned; impugning; impugns

transitive verb

1
: to assail by words or arguments : oppose or attack as false or lacking integrity
impugned the defendant's character
2
obsolete
a
: assail
b
: resist
impugnable adjective
impugner noun

Did you know?

Impugn, pugnacious, pugilist: them’s fightin’ words, literally. All three words trace back to the Latin noun pugnus, meaning “fist.” Though they floated like butterflies down different paths into English from that shared source, each stings like a bee (so to speak) in its own way. The noun pugilist refers to a fighter or boxer, while the adjective pugnacious describes someone showing a readiness or desire to fight or argue. The verb impugn today has belligerent implications, albeit of the verbal jousting kind, but in its earliest known English uses in the 1300s, impugn could refer to a physical attack (as in, “the troops impugned the city”) as well as to assaults involving verbal contradiction or dispute. Over time, though, the sense of literal battling has become obsolete while the “assailing by words or arguments” sense has endured.

Examples of impugn in a Sentence

He impugned his rival's character. Her motives have been scrutinized and impugned.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Who suspected the argument would impugn the motives and integrity of the artists who made it? Armond White, National Review, 28 Mar. 2025 Berman stressed that the investigation itself does not impugn Montoya or Bay FC. Jerry McDonald, The Mercury News, 7 Mar. 2025 Some of the officials involved have embraced a tactic of impugning Goldberg as a strawman diversion from the real controversy. Tony Bradley, Forbes.com, 26 Mar. 2025 Rather, it is being used to impugn Baldoni's character and demonstrate malicious intent on his part. Barbara A. Perry, Newsweek, 27 Jan. 2025 See All Example Sentences for impugn

Word History

Etymology

Middle English, from Anglo-French empugner, from Latin inpugnare, from in- + pugnare to fight — more at pungent

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of impugn was in the 14th century

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Cite this Entry

“Impugn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/impugn. Accessed 5 Jun. 2025.

Kids Definition

impugn

verb
im·​pugn im-ˈpyün How to pronounce impugn (audio)
: to attack as false or not to be trusted
impugn the honesty of an opponent

More from Merriam-Webster on impugn

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