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
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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
But absent an oil-rich ally, like Russia or Venezuela, and faced with an implacable enemy, Cuban officials may have no choice but to bring Cuba back into the orbit of American power, at least for now.
—
Joseph J. Gonzalez, The Conversation, 23 Mar. 2026
But as all the world knows, Edmond Dantès did rise again, transformed from an innocent young sailor into that courtly yet implacable avenger, the Count of Monte Cristo.
—Michael Dirda, The New York Review of Books, 19 Mar. 2026
Within a year, Hezbollah was established, becoming one of Israel’s most implacable enemies.
—Ron Kampeas, Sun Sentinel, 2 Mar. 2026
Duvall as Hagen has poured a drink before the revelation, but Brando joins him with an awareness of trouble, and the news is given and received with implacable dignity by both.
—Fred Schruers, IndieWire, 16 Feb. 2026
See All Example Sentences for implacable
Joseph J. Gonzalez, The Conversation, 23 Mar. 2026
But as all the world knows, Edmond Dantès did rise again, transformed from an innocent young sailor into that courtly yet implacable avenger, the Count of Monte Cristo.
—Michael Dirda, The New York Review of Books, 19 Mar. 2026
Within a year, Hezbollah was established, becoming one of Israel’s most implacable enemies.
—Ron Kampeas, Sun Sentinel, 2 Mar. 2026
Duvall as Hagen has poured a drink before the revelation, but Brando joins him with an awareness of trouble, and the news is given and received with implacable dignity by both.
—Fred Schruers, IndieWire, 16 Feb. 2026
See All Example Sentences for implacable
Recent Examples of Synonyms for implacable
Adjective
-
Researchers have been looking into ways to reduce the stubborn inflammation HIV causes in the central nervous system.—
Smita S. Iyer,
The Conversation,
8 June 2026
-
The findings, published in 2025 in Brain Stimulation, point to a fundamentally new way of treating one of the most stubborn psychiatric conditions, using a miniaturized implant that delivers brief bursts of stimulation only during key moments of exposure therapy.—
Samantha Agate,
Fort Worth Star-Telegram,
8 June 2026
Adjective
-
The circuit winds through the streets of Monte Carlo — past the harbor, a famous casino, and through a tunnel — demanding relentless concentration as cars brush inches from the barriers.—
Sahil Kapur,
NBC news,
7 June 2026
-
Chloe Thompson, Denver North’s goalie who has played with Gentry since elementary school, witnessed a relentless competitor who understands how greatness gets crafted in the practice beyond practice.—
Kyle Newman,
Denver Post,
7 June 2026
Adjective
-
Regardless, Stanton is adamant that there is no hypothetical future in which raccoons could realistically become good house pets.—
Shoshi Parks,
Popular Science,
10 June 2026
-
Alonso was adamant that the school board should seek opportunities to either repurpose or lease properties that schools vacate, not sell them.—
Miami Herald,
Miami Herald,
9 June 2026
Adjective
-
The two of them sit watching the four of us with grim fascination, as if at a public hearing.—
Literary Hub,
Literary Hub,
11 June 2026
-
In the early days of the Iran war, analysts held the grim prediction that crude oil prices would top $200 a barrel, nearly triple pre-war prices.—
Sasha Rogelberg,
Fortune,
10 June 2026
Adjective
-
Douglas County remains steadfast in its commitment to transparency and adherence to Colorado Open Meeting laws.—
Olivia Young,
CBS News,
8 June 2026
-
The throughline of his life is his on-again, off-again friendship with, but also his steadfast love for a neighbor girl of the upper class, who challenges him repeatedly to become his better self.—
The Know,
Denver Post,
31 May 2026
Adjective
-
But is this really a viable check on a determined president willing to fire and replace anyone standing in his or her way?—
Steven Andreasen,
Twin Cities,
7 June 2026
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Despite these obstacles, single women are determined to achieve their goal of homeownership and continue to be a driving force in the market.—
Kathy Collins,
Fortune,
6 June 2026
Adjective
-
Its persistent activity and explosive potential earn it a place among the world’s most dangerous volcanoes.—
Kaif Shaikh,
Interesting Engineering,
9 June 2026
-
However, for options traders who had been leaning bearish recently, the persistent put-buying in the face of deep selling is a sign some of the sector's biggest cheerleaders are looking elsewhere.—
Oliver Renick,
CNBC,
9 June 2026
Cite this Entry
“Implacable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/implacable. Accessed 15 Jun. 2026.
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