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
ABC News,
22 June 2026
The single-engine turboprop plane that crashed in Butler, Missouri, soon after takeoff June 14 had just been brought in for skydiving flights 12 days before the deadly incident, The Star has learned.
—
Judy L. Thomas,
Kansas City Star,
22 June 2026
Sam Sodomsky,
Pitchfork,
4 May 2026
In Langbein’s comic, but also deadly serious, imagination, this is no mere metaphor.
—
Los Angeles Times,
22 Apr. 2026
See All Example Sentences for deadly
Adjective
Medical specialists took to the airwaves to warn of the potentially deadly cocktail of drinking alcohol in extreme heat.
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ABC News,
22 June 2026
The single-engine turboprop plane that crashed in Butler, Missouri, soon after takeoff June 14 had just been brought in for skydiving flights 12 days before the deadly incident, The Star has learned.
—
Judy L. Thomas,
Kansas City Star,
22 June 2026
Adverb
Like those albums, LP4 operates with its own sense of logic and time, sounding alternately playful and deadly serious, proudly complex and refreshingly pared back.
—
Sam Sodomsky,
Pitchfork,
4 May 2026
In Langbein’s comic, but also deadly serious, imagination, this is no mere metaphor.
—
Los Angeles Times,
22 Apr. 2026
See All Example Sentences for deadly
Recent Examples of Synonyms for deadly
Adjective
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Haiti later won a true goal thanks to a lethal shot from Isidor.
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Now 34 years later, Florida is set to execute Spencer by lethal injection on Thursday, June 25.
Adjective
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This sheer shade is a light and delicate pink with a hint of beige.
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The sheer number of deals available can make shopping overwhelming for even the savviest shoppers.
Adjective
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In the popular imagination, romantasy is a heterosexual affair, centered on mortal heroines and their supernatural suitors.
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This season, the previously unparalleled superpowers of Scheffler’s iron play have diminished to near-mortal capabilities.
Adverb
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Now, multiple residents are left worried about what's to come next week with extremely hot temperatures in the forecast.
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Despite being the fourth largest economy in the world — the home of Hollywood and Silicon Valley — California’s budget is extremely dependent on the state’s most prosperous residents.
Adjective
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The fatal attack came 16 days later.
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Detectives identified James Goodman, 39, and Devinae Mitchell, 26, both of Hercules, as suspects in the fatal shooting, police said.
Adjective
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Meanwhile, since the Scaloni era’s unprecedented winning streak, Argentineans’ adoration of Messi has, at last, become unconditional.
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If the Heat’s pick in next year’s draft falls between 1 and 14, Miami would keep that pick and send Charlotte an unconditional first-round pick in 2028.
Adjective
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Both were pronounced dead at the scene, officials said.
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Satellite photos showed the destruction in Venezuela left by two powerful earthquakes that struck Wednesday and left more than 900 people dead.
Adverb
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This butter-yellow tunic feels cheerful, airy, and incredibly chic for summer.
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The producers are amazing, the writers are amazing, the director's amazing and Netflix has been nothing but incredibly supportive.
Cite this Entry
“Deadly.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/deadly. Accessed 28 Jun. 2026.
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