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
García Harfuch — always decked out in suit and tie — transmits an aura of competence, and his media-savvy advisors have burnished his image as an implacable foe of the cartels.
From Los Angeles Times • Nov. 29, 2025
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
Sen, who also handled both the black-and-white cinematography and the editing, has a terrific eye for shot composition and sets a deliberate pace that feels implacable rather than merely slow.
From New York Times • Mar. 21, 2024
But Svadilfari was sure-footed and implacable, even in the thickest, wettest mud, and he hauled the rocks to Asgard, although the stone-boat was so heavy it cut deep gashes into the sides of the hills.
From "Norse Mythology" 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.
