as in ruthless
having or showing a lack of sympathy or tender feelings
an indurate heart that admits no love or mercy
Synonyms & Similar Words
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Antonyms & Near Antonyms
1
as in to freeze
to become physically firm or solid
clay that had been indurated by long exposure to the summer sun
Synonyms & Similar Words
Antonyms & Near Antonyms
2
as in to strengthen
to make able to withstand physical hardship, strain, or exposure
such a brutal upbringing could only callous his soul and indurate his heart to the suffering of others
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of indurate
Scott Bradfield,
The New Republic,
24 Jan. 2023
Adjective
His characters strive to achieve things—such as love, self-command, or financial success—but those efforts are made ironic in the face of a world that, while sometimes beautiful to look at, remains indurate to human happiness.
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Scott Bradfield,
The New Republic,
24 Jan. 2023
Recent Examples of Synonyms for indurate
Adjective
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Natural selection is usually ruthless about weeding out traits with no function.
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Supergirl builds to a final showdown with Krem of the Yellow Hills, the ruthless Brigands leader who murdered Ruthye’s family and poisoned Krypto early in the film.
Verb
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Gupta considers the blanket rent freeze a blunt tool that doesn't adequately address the affordability crisis.
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Identity monitoring service Aura can also freeze your credit without requiring you to contact the credit bureaus.
Verb
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Manucurist formulates its masks with panthenol, a form of vitamin B5, to hydrate and strengthen dry nails over time, reducing breakage.
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The only way to preserve our republic is to strengthen the pillars of our present with the mortar of our past.
Adjective
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Oscar Wilde, for example, reposes beneath a hulking deity whose iconoclastic castration, back in 1961, did little to restrain pilgrims seeking to smear red lips across his stony physique.
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Instead of looking like a sleek urban loft, the room can quickly start to feel cold, stony, and impersonal.
Verb
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The organizations that succeed build the platform first, establish a real control plane, harden the data and infrastructure layers, and then let teams scale agents on top of it.
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The interview, released in August, was supposed to follow the show’s usual strange logic, but instead the exchange hardened around Gaza, with Friedland growing visibly emotional as Torres remained largely unmoved.
Adjective
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The poem that precedes it, the Iliad, is a cruel and beautiful work, the ultimate story of war; the Odyssey has its warlike passages, but its central energies seem almost commonplace beside the merciless fury of Achilles.
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Humility is the posture; the standard is merciless.
Verb
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Group 1 is pulmonary arterial hypertension, a rare and severe version that occurs when blood vessels in the lungs narrow and stiffen.
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Pulisic played a dynamic first half in the Americans' historic 4-1 victory over Paraguay to open their home World Cup nearly two weeks ago, but the AC Milan midfielder came off at halftime after an injury from training stiffened up.
Adjective
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Not long afterward, he was elected president on a platform deeply hostile to the West and its liberal ideology, and especially to the United States — threatening a hard fight in the event of war.
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That’s hard to imagine of a president who uses the office to promote and prosper from his own brand name.
Cite this Entry
“Indurate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/indurate. Accessed 6 Jul. 2026.
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