1
as in headache
a dull, unpleasant, or difficult piece of work
weeding out that overgrown garden is going to be a killer
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in murderer
a person who kills another person
gunned down by hired killers
Synonyms & Similar Words
1
as in lethal
likely to cause or capable of causing death
killer viruses that claimed millions of lives
Synonyms & Similar Words
Antonyms & Near Antonyms
2
as in difficult
requiring considerable physical or mental effort
a killer exercise program guaranteed to whip you into shape
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of killer
Todd Spangler, Variety, 4 Mar. 2026
The darkly comic crime drama pits Frances McDormand's righteously furious mom against a police force that hasn't caught her daughter's killer.
—Brian Truitt, USA Today, 4 Mar. 2026
The Ghostface killer attacks them, leaving two dead, including Lucas, impaled on a sharp beer tap handle.
—Nick Romano, Entertainment Weekly, 4 Mar. 2026
Natural weed killers use vinegar, iron, or essential oils to kill weeds.
—Brandee Gruener, Southern Living, 3 Mar. 2026
See All Example Sentences for killer
Noun
This series is the gripping tale of Paul’s real-time investigation into four murders related to Joe Naso, pitting one of America’s best detectives against one of its most prolific and deranged serial killers.
—Todd Spangler, Variety, 4 Mar. 2026
The darkly comic crime drama pits Frances McDormand's righteously furious mom against a police force that hasn't caught her daughter's killer.
—Brian Truitt, USA Today, 4 Mar. 2026
The Ghostface killer attacks them, leaving two dead, including Lucas, impaled on a sharp beer tap handle.
—Nick Romano, Entertainment Weekly, 4 Mar. 2026
Natural weed killers use vinegar, iron, or essential oils to kill weeds.
—Brandee Gruener, Southern Living, 3 Mar. 2026
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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Symptoms such as shortness of breath, chest pain or a severe headache could signal a medical emergency.—
CNN Money,
CNN Money,
3 Mar. 2026
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Symptoms include vomiting and diarrhea, nausea and stomach pain, body aches, headache and fever.—
Steven Rosenbaum,
CBS News,
27 Feb. 2026
Noun
-
The novel, Arnott’s first under her married name and subject to a bidding frenzy at the 2024 London Book Fair, reflects her long-standing fascination with murderers.—
Diane Garrett,
Los Angeles Times,
3 Mar. 2026
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The murderer and writer Jack Abbott was in prison when Mailer befriended him, and went on to kill again after Mailer lobbied for his release.—
James Verini,
New Yorker,
2 Mar. 2026
Adjective
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Many diseases are more infectious and more lethal than COVID-19 was, and the next such pandemic could prove to be our species’ undoing.—
Big Think,
Big Think,
4 Mar. 2026
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Nicholas and three of his playmates at the day care were poisoned by the lethal opioid, which the owners stored in a nap room, officials said.—
Sheetal Banchariya,
New York Daily News,
4 Mar. 2026
Adjective
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Mascherano said his second-half lineup change was a difficult one to make.—
Miami Herald,
Miami Herald,
2 Mar. 2026
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The winners said the warmer-than-normal conditions made a challenging course even more difficult.—
Bo Evans,
CBS News,
1 Mar. 2026
Noun
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Alpha and Stellaris will together create thousands of jobs and supplier contracts for European manufacturers and engineers, from construction and manufacturing to advanced electrical, magnet systems, and more.—
Prabhat Ranjan Mishra,
Interesting Engineering,
2 Mar. 2026
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Trump and his Fed nominee, Kevin Warsh, say AI can spark a 1990s-style economic boom with surging productivity, low rates and strong job growth.—
Paul Wiseman,
Los Angeles Times,
2 Mar. 2026
Noun
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Statham stars as a retired assassin living off the coast of Scotland who has to get back to work while trying to stop the agency that used to pay him and protecting a young girl named Jessie (Bodhi Rae Breathnach).—
Brian Tallerico,
Vulture,
28 Feb. 2026
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Watching General Pinochet’s man on the spot, the American assassin Michael Vernon Townley, murder some of Chile’s finest leaders shows that the allure of espionage was largely a fiction, a cinematic fabrication.—
Alfred McCoy,
Literary Hub,
26 Feb. 2026
Adjective
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Highways were jammed overnight and into Monday with people fleeing after what was Israel's deadliest barrage on Lebanon in more than a year, striking hours after Hezbollah fired missiles across the border for the first time in more than a year.—
FADI TAWIL,
Arkansas Online,
3 Mar. 2026
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The deadly attack is among 56 mass shootings in the US so far this year, according to the Gun Violence Archive.—
Amanda Musa,
CNN Money,
2 Mar. 2026
Adjective
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According to Hermeus, developing aircraft capable of such speeds remains one of the most challenging areas of aerospace engineering.—
Jijo Malayil,
Interesting Engineering,
5 Mar. 2026
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Subscribe now Kennedy’s girls basketball team continued to show its growth with freshman Ta’Niya Paul on Tuesday during a challenging Division IV first-round game in the CIF Southern California Regional.—
Dan Albano,
Oc Register,
4 Mar. 2026
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 6 Mar. 2026.
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