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
But this is what happens when an athlete reaches unimpeachable status.
—
Bennett Durando, Denver Post, 21 Nov. 2025
The show’s technical elements are also unimpeachable, this year adding a clever surprise near the end of Scrooge’s encounter with the Ghost of Christmas Future.
—Rob Hubbard, Twin Cities, 15 Nov. 2025
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
See All Example Sentences for unimpeachable
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Bennett Durando, Denver Post, 21 Nov. 2025
The show’s technical elements are also unimpeachable, this year adding a clever surprise near the end of Scrooge’s encounter with the Ghost of Christmas Future.
—Rob Hubbard, Twin Cities, 15 Nov. 2025
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
See All Example Sentences for unimpeachable
Cite this Entry
“Unimpeachable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unimpeachable. Accessed 17 Dec. 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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