Definitions

impugn

[im-pyoon] / ɪmˈpyun /

VERB

criticize, challenge

Synonyms

STRONGEST

assail contravene tar

STRONG

attack blast break contradict cross deny dispute gainsay knock negate negative oppose question resist slam smear traduce trash traverse zap

WEAK

call into question cast doubt upon come down on cut to shreds disaffirm pin something on put down run down skin alive stick it to swipe at throw doubt on throw the book at thumb nose at zing

Antonyms

STRONG

agree aid allow approve assist compliment concede confirm corroborate go along help join praise stay support

WEAK

flatter

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.

Ms. Nuzzi will not dignify efforts to impugn her character with any future response,” Nuzzi’s lawyer Ari Wilkenfeld said in a statement.

From The Wall Street Journal • Dec. 4, 2025

That’s not to say that a cynic would be shocked if somebody donated to charity or helped a stranger, but they might suspect or impugn the person’s motives.

From Los Angeles Times • Sep. 12, 2024

If Gardner was going to impugn his character and question his credibility, he decided, he wouldn’t cooperate with her prosecutors.

From Salon • Oct. 10, 2023

But first she bought brown drugstore hair dye, worried that being seen there might impugn her reputation.

From New York Times • May 7, 2023

No person can with decency and propriety impugn the operation of Nature’s laws to which he owes his existence; and he is degraded and corrupt above all others who regards that law as essentially sensual.

From The Eliminator; or, Skeleton Keys to Sacerdotal Secrets by Westbrook, Richard B.

Vocabulary lists containing impugn

Hidden Figures

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First Man: The Life of Neil A. Armstrong

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The Merchant of Venice

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