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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The Emmys’ producers passing up on even the slightest possibility of a Werner Herzog acceptance speech is sheer lunacy.
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For a few weeks, concerns about skyrocketing housing costs and gentrification, brought on by the city’s increasing popularity as a place to settle down, are taking a back seat to the sheer fun of international soccer.
Adjective
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The rest of the horses were in mortal terror of Dick.
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For Katherine LaNasa, her bond with ex-husband Dennis Hopper transcended the mortal plane.
Adverb
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Canada and Qatar drew their first matches, making this an extremely important opportunity for their hopes of advancing out of the group stage.
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All had extremely low omega-3 levels and at least one risk factor for dementia, such as obesity, sedentary lifestyle, high blood pressure or cholesterol.
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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Human rights groups have called for the immediate and unconditional release of Abu Safiya amid reports that he has been denied food and proper medical care and has been subjected to abuse.
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His philosophy centers on the concept of unconditional love.
Adjective
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After being struck by gunfire, the man was pronounced dead at a hospital.
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Police are investigating after a man was found dead underwater Saturday afternoon in Lauderhill.
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 25 Jun. 2026.
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