implacable

[ im-plak-uh-buhl, -pley-kuh- ]

See synonyms for: implacable implacability implacableness on Thesaurus.com

adjective

not to be appeased, mollified, or pacified; inexorable: an implacable enemy.

Origin of implacable

First recorded in 1375–1425; late Middle English word from Latin word implācābilis. See im-², placable

synonym study For implacable

See inflexible.

Other words for implacable

unappeasable, unbending, merciless

See synonyms for implacable on Thesaurus.com

Other words from implacable

im·plac·a·bil·i·ty, im·plac·a·ble·ness, noun
im·plac·a·bly, adverb

Words Nearby implacable

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use implacable in a sentence

These implacable sentries and imperial and courtly surveillance robots and AIs are theoretically superior to the human beings who would otherwise be entrusted with these tasks.
Ancient robots were objects of fantasy and fun | E. R. Truitt/MIT Press Reader | November 30, 2021 | Popular-Science
His curse is not just working like an architect works, with grueling hours and implacable clients, although that’s true.
How to Build a Society for All to Enjoy - Issue 107: The Edge | Kathryn Paige Harden | September 29, 2021 | Nautilus
It’s me who is the victim here of foes who are implacable, Who hope that I am finally politically attackable.
Style Invitational Week 1444: It’s a whole new all-game — name a sport | Pat Myers | July 7, 2021 | Washington Post
Esther and Mordecai confront a hostile host society and an implacable bureaucracy.
Purim Perils: His View Is His Own | Rabbi Daniel Landes | February 18, 2013 | THE DAILY BEAST
Norm is a symbol of implacable corporate power—preening, surgically perfected, casually domineering.
American Dreams: The Essential Book of 2012 | Nathaniel Rich | December 28, 2012 | THE DAILY BEAST

And so DeMint, an implacable foe of Obamacare, will now get paid to run the organization that helped incubate Obamacare.
Fiscal Cliff Countdown, Day 30: Senate Meets Dada | Daniel Gross | December 6, 2012 | THE DAILY BEAST
Abandoned its implacable opposition to the International Red Cross.
Obama Does Delicate Dance on Historic Visit to Burma | Lennox Samuels | November 19, 2012 | THE DAILY BEAST
Within a sentence, Funes and his implacable memory are dead, as is God.
Aleksandar Hemon on Jorge Luis Borges’s ‘Funes the Memorious’ | Aleksandar Hemon | September 26, 2012 | THE DAILY BEAST
Hence it was that he found in Great Britain an implacable enemy ever stirring up against him European coalitions.
Napoleon's Marshals | R. P. Dunn-Pattison
But the loathsome death of this brutal voluptuary soon delivered the church from the most implacable of its foes.
The Catacombs of Rome | William Henry Withrow
But this way of dealing with the message was far too mild and moderate to satisfy the implacable malice of Howe.
The History of England from the Accession of James II. | Thomas Babington Macaulay
But the implacable Venus stares through the world with her steady marble eyes.
Charles Baudelaire, His Life | Thophile Gautier
Ren took them in at the door, with his rifle in the hollow of his arm, and he was as implacable as a ticket taker at the opera.
The Amazing Interlude | Mary Roberts Rinehart

British Dictionary definitions for implacable

implacable

/ (ɪmˈplækəbəl) /

adjective

incapable of being placated or pacified; unappeasable
inflexible; intractable

Derived forms of implacable

implacability or implacableness, noun
implacably, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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