implacable
Americanadjective
adjective
-
incapable of being placated or pacified; unappeasable
-
inflexible; intractable
Related Words
See inflexible.
Other Word Forms
- implacability noun
- implacableness noun
- implacably adverb
Etymology
Origin of implacable
First recorded in 1375–1425; late Middle English word from Latin word implācābilis. See im- 2, placable
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.
I felt sickened by every piece of news I gave her—her court date canceled, the border closed, the pandemic spreading—but her faith in the system, and in me, seemed implacable.
From Slate • Jan. 15, 2026
After taking office, Cheney pursued with implacable vigor his vision of sweeping presidential authority—an idea known as the unitary executive.
From The Wall Street Journal • Nov. 4, 2025
Craig Wallace’s Telégin, known as “Waffles” for his pockmarked skin, is an amiable fumbler yet suffused with kindness and possessing an implacable decency.
From Los Angeles Times • Mar. 19, 2025
"Even the implacable Logan Roy would smile in delighted amazement if he could see this," Fiona Mountford of iNews wrote of Snook's stage performance.
From BBC • Feb. 16, 2024
What really counted was the possibility of escape, a leap to freedom, out of the implacable ritual, a wild run for it that would give whatever chance for hope there was.
From "The Stranger" by Albert Camus
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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.