1
as in stubborn
sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion
an implacable judge who knew in his bones that the cover-up extended to the highest levels of government
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in relentless
showing no signs of slackening or yielding in one's purpose
an implacable dedication to the proposition that everyone is entitled to a quality education
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of implacable
Williams’ cellos pounding those notes over and over, with tuba over them, created a true character for the shark: Relentless, implacable, all-devouring.
—
David Ehrlich, IndieWire, 20 Aug. 2025
Now working as a police dispatcher, the only thing that has kept him going is his implacable refusal to accept that she might be gone forever.
—Anthony D'alessandro, Deadline, 21 July 2025
Blue metal boxes on posts line the roadway, a slot beckoning a few coins to the Imam Khomeini Relief Foundation, named for the cleric who, in 1979, turned Iran from Israel’s stalwart ally to its implacable foe.
—Karl Vick, Time, 13 June 2025
The compulsion of doctors to write, then, may simply be an extension of the reason so many of us entered medicine—an implacable curiosity about how people tick.
—Danielle Ofri, New Yorker, 7 June 2025
See All Example Sentences for implacable
David Ehrlich, IndieWire, 20 Aug. 2025
Now working as a police dispatcher, the only thing that has kept him going is his implacable refusal to accept that she might be gone forever.
—Anthony D'alessandro, Deadline, 21 July 2025
Blue metal boxes on posts line the roadway, a slot beckoning a few coins to the Imam Khomeini Relief Foundation, named for the cleric who, in 1979, turned Iran from Israel’s stalwart ally to its implacable foe.
—Karl Vick, Time, 13 June 2025
The compulsion of doctors to write, then, may simply be an extension of the reason so many of us entered medicine—an implacable curiosity about how people tick.
—Danielle Ofri, New Yorker, 7 June 2025
See All Example Sentences for implacable
Recent Examples of Synonyms for implacable
Adjective
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Uninhibited by the European commitments of their rivals following last season’s dreary eighth-place finish, Massimiliano Allegri has wasted no time moulding the Rossoneri into a stubborn outfit that sit within two points of the summit after a 0-0 draw at Juventus before the international break.—
Jack Bantock,
New York Times,
17 Oct. 2025
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That damaging psychic weight of insecurity and self-blame seeps into our society and politics, where polls show a stubborn and longtime trend of declining faith in a better future.—
Nino Paoli,
Fortune,
11 Oct. 2025
Adjective
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Our sky is constantly changing as the relentless passing of the seasons and movement of the planets, moon, comets and Earth itself bring an ever-shifting array of astronomical targets into view.—
Anthony Wood,
Space.com,
14 Oct. 2025
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By hypothesizing that a phase of relentless, exponential expansion preceded and set up the hot Big Bang, inflation implies the following.—
Big Think,
Big Think,
14 Oct. 2025
Adjective
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Whoever wins or doesn’t win, Markman is adamant that trophies don’t define us.—
Andre Gee,
Rolling Stone,
14 Oct. 2025
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Much to the dismay of Gen Z striving for success with a manageable work-life balance, CEOs are adamant that intense schedules are essential for anyone looking to make it in business.—
Emma Burleigh,
Fortune,
13 Oct. 2025
Adjective
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This grim reality evokes a sense of sorrow and powerlessness among women in Paina Bujurg.—
Aishwarya S. Iyer,
CNN Money,
16 Oct. 2025
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To the right lay the harbor, its narrow entrance guarded by the grim Morro Castle.—
Literary Hub,
Literary Hub,
15 Oct. 2025
Adjective
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Juan, his family, and supporters remain steadfast in their confidence in his innocence and his characters as a hardworking, law-abiding member of society.—
Michael Loria,
USA Today,
16 Oct. 2025
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At an event held at the American Museum of the Cuban Diaspora in Miami, representatives from several universities and civic institutions praised Machado’s courage, nonviolent leadership and steadfast commitment to restoring democracy in her homeland.—
Antonio María Delgado,
Miami Herald,
13 Oct. 2025
Adjective
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The general store, which was built in 1796 and is the oldest in Vermont, has survived several fires, thanks to the efforts of determined Putney residents.—
Megan Margulies,
Travel + Leisure,
11 Oct. 2025
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Proctor hasn’t scored yet this season, but the Crimson Tide look determined to get him in the end zone.—
David Ubben,
New York Times,
11 Oct. 2025
Adjective
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Those who have trouble breathing, chest pain, a fever of 102 degrees Fahrenheit or a persistent cough should seek medical care, according to the Mayo Clinic.—
Rebecca Cohen,
NBC news,
16 Oct. 2025
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The novelist Adam Johnson is not a writer of that doggedly persistent kind.—
Literary Hub,
Literary Hub,
16 Oct. 2025
Cite this Entry
“Implacable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/implacable. Accessed 18 Oct. 2025.
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