1
as in headache
a dull, unpleasant, or difficult piece of work
weeding out that overgrown garden is going to be a killer
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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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Example Sentences
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Recent Examples of killer
Michael Ruiz, FOXNews.com, 23 Apr. 2026
Silent drone killer Mounted on a light pickup truck platform the weapon supports rapid deployment and operational flexibility.
—Georgina Jedikovska, Interesting Engineering, 22 Apr. 2026
Investigators say that as people gathered on the street celebrating Independence Day, the killer made his move.
—Ted Scouten, CBS News, 22 Apr. 2026
The 48-year-old killer of the MIT physicist, who in a video confession expressed vague grievances dating back to his early adulthood, also shot 11 people at Brown University, killing two, before dying by suicide.
—Dan Adler, Vanity Fair, 22 Apr. 2026
See All Example Sentences for killer
Noun
Rootless hair samples helped land Long Island serial killer Rex Heuermann in prison decades after his first murder.
—Michael Ruiz, FOXNews.com, 23 Apr. 2026
Silent drone killer Mounted on a light pickup truck platform the weapon supports rapid deployment and operational flexibility.
—Georgina Jedikovska, Interesting Engineering, 22 Apr. 2026
Investigators say that as people gathered on the street celebrating Independence Day, the killer made his move.
—Ted Scouten, CBS News, 22 Apr. 2026
The 48-year-old killer of the MIT physicist, who in a video confession expressed vague grievances dating back to his early adulthood, also shot 11 people at Brown University, killing two, before dying by suicide.
—Dan Adler, Vanity Fair, 22 Apr. 2026
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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But after developing a headache that lasted for several months, a friend convinced her to visit the emergency room.—
Brad Quick,
CNBC,
20 Apr. 2026
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This can create headaches for physicians and other providers.—
Noam N. Levey,
Hartford Courant,
20 Apr. 2026
Noun
-
Police scoff at the idea, so the women decide to find the murderer on their own.—
Sandra Dallas,
Denver Post,
19 Apr. 2026
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The statement said Midlothian police are partnered with other agencies, including the Texas Department of Public Safety, in the hunt for the murderer.—
Matthew Adams,
Fort Worth Star-Telegram,
17 Apr. 2026
Adjective
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Iran has gone from having the most lethal navy in the Middle East to now acting like a bunch of pirates.—
Charbel Mallo,
CNN Money,
22 Apr. 2026
-
The combination is the standard in Florida lethal injections.—
Robert McGreevy,
FOXNews.com,
22 Apr. 2026
Adjective
-
Putting in the new chip was more difficult.—
Julian Lucas,
New Yorker,
20 Apr. 2026
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The rest will be more difficult.—
Doug Haller,
New York Times,
20 Apr. 2026
Noun
-
The company expected to be nearly halfway to its goal of 25,000 new jobs in the area by 2038.—
Kendall Staton,
Washington Post,
20 Apr. 2026
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And really got to that and did a nice job of mixing the four-seamer, the two-seamer.—
LaMond Pope,
Chicago Tribune,
20 Apr. 2026
Noun
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Their efforts lead them in the season’s last two episodes to Paris, where Frank was planning to celebrate his 80th birthday with his children — only for him to be gunned down in a hotel lobby by an assassin who had been sent to kill Teddy for a deal gone wrong.—
Max Gao,
Variety,
11 Apr. 2026
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Neither of these two is necessarily a lip-sync assassin.—
Jason P. Frank,
Vulture,
11 Apr. 2026
Adjective
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For the first time since Hong Kong’s deadliest fire in decades engulfed his apartment building in November, Mak stepped into his former home again Monday.—
Kanis Leung,
Los Angeles Times,
20 Apr. 2026
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Over the following decades, state and federal investigators linked the pipe to multiple explosions, including a fatal blast in Lake Dallas in 1997 and a deadly explosion in Garland in 2000 that killed three people.—
Brian New,
CBS News,
20 Apr. 2026
Adjective
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And that making fairly big changes would be really challenging, not only internally at CBS, but externally for the audience.—
Michael Schneider,
Variety,
22 Apr. 2026
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Two miles of on-site hiking trails offer challenging routes leading to meditation gardens, hilltop swings, and astonishing views of the Pitons and coastline below.—
Condé Nast,
Condé Nast Traveler,
21 Apr. 2026
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 24 Apr. 2026.
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