impeccable
Americanadjective
-
faultless; flawless; irreproachable.
impeccable manners.
- Synonyms:
- unexceptionable, unassailable
-
not liable to sin; incapable of sin.
adjective
-
without flaw or error; faultless
an impeccable record
-
rare incapable of sinning
Other Word Forms
Etymology
Origin of impeccable
First recorded in 1525–35, impeccable is from the Latin word impeccābilis “faultless, sinless”; see im- 2, peccable
Explanation
The adjective impeccable describes something or someone without any flaws. A stand-up comedian needs impeccable timing for her jokes to work. The adjective impeccable refers to something or someone without marking or error — but it can describe something spotless or clean. The word comes from the Latin impeccabilis, "to be sinless," which is also an outdated sense in English. You can see how "clean" comes from "sinless." Because of the messy nature of picnic food, it is highly unlikely that you would leave with your clothing still as impeccable as when you arrived, especially if you like lots of mustard and ketchup!
Vocabulary lists containing impeccable
Advanced English Words
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The Kite Runner
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Divergent
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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.
As host, Billy Crystal brought his impeccable comic timing and easy affability to the stage, making the grand gala feel as cozy as a backyard barbecue.
From Los Angeles Times ● Jun. 22, 2026
For Boeing, a company already reeling from years of safety scandals, it is about the integrity of one of its premium products: the 787 Dreamliner, an aircraft with a hitherto impeccable safety record.
From BBC ● Jun. 10, 2026
"My mother maintained right up to the end, the impeccable style, sharp mind, and effortless charm."
From BBC ● Jun. 5, 2026
Anthony would marry again, this time to a woman who was a Dutch burgher of impeccable standing.
From The Wall Street Journal ● May 19, 2026
Kaz watched the brigantine surge across the water toward Ketterdam, to safety, to a fortress built on Van Eck’s impeccable mercher reputation.
From "Six of Crows" by Leigh Bardugo
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.
