1
as in lethal
likely to cause or capable of causing death
the doctors were alarmed about the outbreak of the deadly new virus
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Antonyms & Near Antonyms
2
as in sheer
having no exceptions or restrictions
the deadly tedium of waiting for the fog to lift
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3
as in mortal
of, relating to, or suggestive of death
a deadly pallor spread across her face as the tragic news gradually sank in
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as in extremely
to a great degree
I'm deadly serious about making an offer on the house
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Example Sentences
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Recent Examples of deadly
Saman Shafiq, USA Today, 31 Mar. 2025
Friday’s quake was the deadliest natural disaster to hit the country in years and comes as Myanmar reels from a civil war that since 2021 has damaged communication networks, battered health infrastructure and left millions without adequate food and shelter.
—Brad Lendon and Alex Stambaugh, CNN Money, 30 Mar. 2025
Reuters, NBC News, 23 Nov. 2024
Widespread malnutrition after a year of dwindling food supplies is another factor making this winter deadly.
—Ghada Abdulfattah, The Christian Science Monitor, 7 Jan. 2025
See All Example Sentences for deadly
Adjective
Saturday's incident comes just two months after an American Airlines plane collided with a U.S. Army Black Hawk helicopter above the Potomac River in a deadly crash that killed 67 people.
—Adverb
Climate woes are stacking up in the wake of such extreme heat, with widespread flooding killing thousands across Africa, deadly landslides burying villages in Asia, and drought in South America shrinking rivers.
—Recent Examples of Synonyms for deadly
Adjective
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When carboxyhemoglobin saturation exceeds 50%, it is considered lethal.—
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Astronauts on a mission to Mars lasting several years would be exposed to potentially lethal amounts of radiation, Pitts said.—
Adjective
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But the sheer volume of options in our modern world—especially in digital spheres such as online shopping, streaming services and mobile applications—can overcome the satisfaction of making these choices.—
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But sheer athleticism won’t turn him into a celebrity, and his demeanor doesn’t endear him to people—Majors plays Maddox as a sullen and tightly wound outcast whose environment shapes his isolation.—
Adjective
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According to Greek mythology, Castor and Pollux were the maternal twin sons of Leda, the mortal queen of Sparta.—
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Wizards Beyond Waverly Place follows an adult Justin Russo, who has chosen to lead a normal, mortal life with his family, Giada, Roman and Milo.—
Adverb
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For one, these tiny particles are extremely difficult to measure.—
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Meanwhile, Adan's breakup with Dani left him crushed — but also extremely grateful to have had the relationship at all.—
Adjective
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Black lung, a debilitating and often fatal condition caused by inhalation of coal and silica dust during mining, affects roughly 1 in 5 miners who have worked in the Central Appalachian mines for twenty-five years or more, according to NIOSH.—
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The day of the fatal fall, Goodwin said Bass had checked on Tidus and his brother minutes prior, and then had stepped outside with the dog.—
Adjective
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While Ukraine agreed to all U.S. proposals for an unconditional ceasefire and subsequently agreed to plans for a smaller-scale maritime ceasefire, the Russians laid out last week a series of new demands, including the lifting of some U.S. sanctions.—
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The themes of the game were unconditional love and revenge, which is in line with the series as well.—
Adjective
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Matthew Terrell Collins Sr., 58, and Matthew Terrell Collins Jr., 29, were pronounced dead at the scene around 6:06 p.m.—
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On the second day of the year, police responded to a call where a father and his son and daughter were found dead.—
Adverb
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More Pro Wrestling: Pro Wrestling Legend Bret Hart Reacts to Record-Breaking WWE Hall of Fame Induction While there's no doubt that these wrestlers are incredibly talented, there are plenty of other WWE Superstars who are more than capable of carrying on a main event match.—
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Shilpa loves cake, so what better time to introduce her incredibly springy, tender, and flavorful Pistachio Bundt Cake recipe!—
Cite this Entry
“Deadly.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/deadly. Accessed 15 Apr. 2025.
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