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
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of killer
Jessica Radloff, Glamour, 26 Feb. 2026
Sure, guests have access to the indulgent, cutting-edge three-story spa and enjoy a killer view from any of its 83 massive, elegant suites.
—Jake Emen, Robb Report, 26 Feb. 2026
More than 20 years after a man was fatally shot when leaving a party in La Quinta, Riverside County detectives have reopened the cold case to try finding his killer.
—Dean Fioresi, CBS News, 26 Feb. 2026
In the episode, Cross, Sampson and Craig discovered a truckload of children being trafficked in Texas, while tracking the movements of a disciple-like follower of serial killer Luz (Jeanine Mason).
—Demetrius Patterson, HollywoodReporter, 25 Feb. 2026
See All Example Sentences for killer
Noun
In the seventh installment (yes, seventh), a new Ghostface killer emerges in the quiet town where Sidney Prescott (Campbell) has built a new life, which is promptly upended when Tatum becomes the killer’s next target.
—Jessica Radloff, Glamour, 26 Feb. 2026
Sure, guests have access to the indulgent, cutting-edge three-story spa and enjoy a killer view from any of its 83 massive, elegant suites.
—Jake Emen, Robb Report, 26 Feb. 2026
More than 20 years after a man was fatally shot when leaving a party in La Quinta, Riverside County detectives have reopened the cold case to try finding his killer.
—Dean Fioresi, CBS News, 26 Feb. 2026
In the episode, Cross, Sampson and Craig discovered a truckload of children being trafficked in Texas, while tracking the movements of a disciple-like follower of serial killer Luz (Jeanine Mason).
—Demetrius Patterson, HollywoodReporter, 25 Feb. 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
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The masked murderer attempted to kill Sidney (Neve Campbell) in a bathroom in the original 1996 Scream, and succeeded in offing Phil (Omar Epps) in a movie theater bathroom stall in the 1997 sequel.—
Emlyn Travis,
Entertainment Weekly,
25 Feb. 2026
-
In many cases, drug lords, murderers all over our country.—
Dallas Morning News,
Dallas Morning News,
25 Feb. 2026
Adjective
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Birmingham's Thomas Rainwater, the casino magnate and Broken Rock Reservation boss, will also feature heavily on Marshals alongside Mo (Mo Brings Plenty), his lethal right hand.—
Randall Colburn,
Entertainment Weekly,
25 Feb. 2026
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Though law enforcement agencies consider pepper spray less lethal, more research is needed to assess its safety.—
Mark Gurarie,
Verywell Health,
25 Feb. 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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Here’s a look at five of Colorado’s scariest, most challenging ski slopes.—
John Meyer,
Denver Post,
26 Feb. 2026
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Competing in the relay of this event is heroic, choosing the individual adult event is up there at the top of challenging events.—
Moira McCarthy,
Boston Herald,
25 Feb. 2026
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 3 Mar. 2026.
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