1
as in ruthless
having or showing a lack of sympathy or tender feelings
a cold-blooded criminal who never once showed an ounce of mercy to his victims
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2
as in icy
lacking in friendliness or warmth of feeling
the cold-blooded selfishness shown by the miser when confronted by people in need
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3
as in stoic
not feeling or showing emotion
a cold-blooded assessment of the situation showed that the company needed either to lay off workers or go bankrupt
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4
as in hybrid
or coldblood
being offspring produced by parents of different races, breeds, species, or genera
he may not be as fancy as the other horses they own, but that cold-blooded gelding is safe and gentle
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Example Sentences
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Recent Examples of cold-blooded
From a long-quiet wingman who dispensed with six years of muttering under his breath and spoke with a cold-blooded certainty that announced his arrival as a force to be reckoned with.
—
Jon Krawczynski,
New York Times,
1 May 2026
The research suggests that warm-blooded fish species, which include great whites, shortfin makos and salmon sharks, burn about four times more energy than cold-blooded species and will increasingly be forced into cooler regions with less food.
—
Moná Thomas,
PEOPLE,
24 Apr. 2026
Some of the ocean’s most powerful predators are warm-blooded creatures that burn nearly four times more energy than their cold-blooded counterparts.
—
Maria Mocerino,
Interesting Engineering,
19 Apr. 2026
Crowds returned to the Cal Expo Pavilion on Sunday to get an up close look at thousands of cold-blooded creatures at the 28th annual Sacramento Reptile Show.
—
Nicole Buss,
Sacbee.com,
19 Apr. 2026
See All Example Sentences for cold-blooded
Jon Krawczynski,
New York Times,
1 May 2026
The research suggests that warm-blooded fish species, which include great whites, shortfin makos and salmon sharks, burn about four times more energy than cold-blooded species and will increasingly be forced into cooler regions with less food.
—
Moná Thomas,
PEOPLE,
24 Apr. 2026
Some of the ocean’s most powerful predators are warm-blooded creatures that burn nearly four times more energy than their cold-blooded counterparts.
—
Maria Mocerino,
Interesting Engineering,
19 Apr. 2026
Crowds returned to the Cal Expo Pavilion on Sunday to get an up close look at thousands of cold-blooded creatures at the 28th annual Sacramento Reptile Show.
—
Nicole Buss,
Sacbee.com,
19 Apr. 2026
See All Example Sentences for cold-blooded
Recent Examples of Synonyms for cold-blooded
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.
Adjective
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Multiple moons in the outer solar system — Saturn's Enceladus and Jupiter's Europa, for example — host big liquid-water oceans beneath their icy shells.
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From aqua suede to icy satin, from stilettos to ballet flats and beach-ready sandals, whatever your bridal style calls, for there’s a pair of blue shoes to match.
Adjective
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The most remarkable performance in the film, however, may be that of real-life counselor Annette Deao, whose firm hand and sympathetic guidance lend Union County its stoic nature.
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Vladimir Petković, the usually stoic 62-year-old coach of Algeria, said he got goosebumps from the way Lawrence has treated his team.
Adjective
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The state also has goals, including some that have been in place since 2012, that set declining limits on smog-causing pollutants and required automakers to sell increasing percentages of electric and hybrid vehicles through 2025.
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The Elora bathroom boasts the type of hybrid wet/dry layout that has become increasingly prevalent in Europe and gained a little steam in the US.
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.
Adjective
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Next to him, the waters of Lincoln’s Sinking Spring still ran cold.
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If time doesn’t allow for spa treatments, a morning swim in the indoor pool accompanied by a sauna and cold plunge in one of their two thermal suites might suffice.
Adjective
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Aabria walks the best line here, keeping her lies small, manageable, and heavily mixed with the truth, and getting the jury on her side most consistently.
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The two nations have given mixed messages on tolls and routes through the vital waterway.
Adjective
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But experts say the optimal temperatures are far from frigid.
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But that’s not how exhaustion typically works during a seventeen-hour climb in frigid weather.
Cite this Entry
“Cold-blooded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cold-blooded. Accessed 6 Jul. 2026.
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