unimpeachable
Americanadjective
adjective
Other Word Forms
Derived Forms
Etymology
Origin of unimpeachable
First recorded in 1775–85; un- 1 + impeachable
Explanation
Unimpeachable describes someone or something that is totally, completely, without any doubt, innocent and good, like an unimpeachable role model who avoids bad influences and sketchy situations. Impeach means "to accuse, or charge with a crime." It is a verb usually reserved for when high-ranking officials like presidents do something wrong. So, when you add the prefix un- and the suffix -able, the result is an adjective that means "not able to be accused," in other words, beyond doubt or question. If you run for public office and your past is unimpeachable, your opponents will have nothing to use against you in their advertisements.
Vocabulary lists containing unimpeachable
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Hamilton
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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.
“Kevin Warsh’s unimpeachable background speaks for itself,” a White House spokesman told Barron’s.
From Barron's • Apr. 24, 2026
Mr. Polito identifies Mr. Dylan’s myriad sources, the contents of the box, often from unimpeachable evidence: the songwriter’s own scribbles in the margins of his manuscripts.
From The Wall Street Journal • Feb. 6, 2026
But even if you haven’t surrendered to the catchiness of “Golden,” the plot’s infectious reflections on acceptance and self-love are unimpeachable for fans of any age.
From Salon • Dec. 19, 2025
This is an iconic work of narrative nonfiction that pairs unimpeachable reporting with advocacy and belief.
From Los Angeles Times • Apr. 14, 2025
Morrison raised his eyebrows to indicate the unimpeachable logic of this statement.
From "Middlesex: A Novel" by Jeffrey Eugenides
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
