unimpeachable
adjective
un·im·peach·able
ˌən-im-ˈpē-chə-bəl 
: not impeachable: such as
a
: reliable beyond a doubt
unimpeachable evidence
an unimpeachable source
b
: not liable to accusation : irreproachable
an unimpeachable reputation
Examples of unimpeachable in a Sentence
a person of unimpeachable integrity
The information is from an unimpeachable source.
Recent Examples on the Web
Her basketball bona fides and her understanding of the X’s and O’s are unimpeachable.
—
Sabreena Merchant, New York Times, 11 Oct. 2025
By the same token, passing peer review doesn’t mean that everything in the piece, from the methods to the results to the conclusions, is sound and unimpeachable.
—Ethan Siegel, Big Think, 19 Sep. 2025
Her character, the increasingly panicked Nostromo navigator Joan Lambert, can’t claim the same renown that Weaver’s heroic Ellen Ripley inspired, but Lambert maintains an unimpeachable place in the genre canon nonetheless.
—Matthew Jacobs, Vulture, 26 Aug. 2025
The succor of small-time hubris is what good bake-offs are about—bakers driven only by that elegant, unimpeachable motive, to be the best.
—Ruby Tandoh, New Yorker, 25 Aug. 2025
See All Example Sentences for unimpeachable
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Sabreena Merchant, New York Times, 11 Oct. 2025
By the same token, passing peer review doesn’t mean that everything in the piece, from the methods to the results to the conclusions, is sound and unimpeachable.
—Ethan Siegel, Big Think, 19 Sep. 2025
Her character, the increasingly panicked Nostromo navigator Joan Lambert, can’t claim the same renown that Weaver’s heroic Ellen Ripley inspired, but Lambert maintains an unimpeachable place in the genre canon nonetheless.
—Matthew Jacobs, Vulture, 26 Aug. 2025
The succor of small-time hubris is what good bake-offs are about—bakers driven only by that elegant, unimpeachable motive, to be the best.
—Ruby Tandoh, New Yorker, 25 Aug. 2025
See All Example Sentences for unimpeachable
Cite this Entry
“Unimpeachable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unimpeachable. Accessed 30 Oct. 2025.
Copy CitationKids Definition
unimpeachable
adjective
un·im·peach·able
ˌən-im-ˈpē-chə-bəl
: not impeachable : not to be doubted or questioned : irreproachable
an unimpeachable reputation
news from an unimpeachable source
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