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
But, as in “Men,” Kinnear’s appearance of placidity makes his characters’ nefarious tendencies even more chilling; his ability to draw his mouth into a grim implacable line is second to none.
From Los Angeles Times • Nov. 21, 2024
"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
Wednesday was obviously on the verge of tears, an old man made helpless by the implacable plastic march of the modern world.
From "American Gods" by Neil Gaiman
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.
