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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Example Sentences
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Recent Examples of killer
Steven Thrash, Entertainment Weekly, 24 Oct. 2025
In the area surrounding South Africa’s Kruger National Park, a mysterious killer begins executing local poachers.
—Leo Barraclough, Variety, 14 Oct. 2025
Based on the Alex Cross books by James Patterson, the series follows the D.C. homicide detective, played by Aldis Hodge, hunting down a serial killer going after corrupt billionaires.
—Jason P. Frank, Vulture, 11 Oct. 2025
City leaders are downplaying speculation about a potential serial killer, but retired NYPD Sgt.
—Michael Ruiz, FOXNews.com, 11 Oct. 2025
See All Example Sentences for killer
Noun
The Count stalks like a slasher, murders in droves like a serial killer, and is the inspiration for every single vampire movie made after 1931.
—Steven Thrash, Entertainment Weekly, 24 Oct. 2025
In the area surrounding South Africa’s Kruger National Park, a mysterious killer begins executing local poachers.
—Leo Barraclough, Variety, 14 Oct. 2025
Based on the Alex Cross books by James Patterson, the series follows the D.C. homicide detective, played by Aldis Hodge, hunting down a serial killer going after corrupt billionaires.
—Jason P. Frank, Vulture, 11 Oct. 2025
City leaders are downplaying speculation about a potential serial killer, but retired NYPD Sgt.
—Michael Ruiz, FOXNews.com, 11 Oct. 2025
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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Regardless of the scheduling headache, there's still no indication the funding bill would pass, unless Republicans and Democrats can strike a deal on health care.—
Zac Anderson,
USA Today,
22 Oct. 2025
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In the year before his death, Thomas had been struggling with his mental health, as well as daily headaches and memory loss, his parents said at the time.—
Natasha Dye,
PEOPLE,
21 Oct. 2025
Noun
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That case went cold as the murderers were never caught.—
Stephanie Sengwe,
PEOPLE,
25 Oct. 2025
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The place is the Savin Bar + Kitchen, in Boston's Dorchester neighborhood, where immediately inside the front door, patrons are greeted by a larger-than-life framed mugshot of Bulger — the mob-boss, murderer, bank robber, drug dealer and extortionist — peering cooly out from under his fedora.—
Tovia Smith,
NPR,
24 Oct. 2025
Adjective
-
None of the agencies have claimed responsibility for using less-lethal weapons.—
Alex Brizee,
Idaho Statesman,
24 Oct. 2025
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But the lethal force has raised several legal questions, as past administrations have relied on law enforcement to interdict drug shipments.—
Alexandra Hutzler,
ABC News,
24 Oct. 2025
Adjective
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One of the world’s most persistent waste problems, plastics are durable and difficult to recycle.—
Prabhat Ranjan Mishra,
Interesting Engineering,
27 Oct. 2025
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But grass is difficult to digest for the mammal.—
Craig Shoup,
Nashville Tennessean,
27 Oct. 2025
Noun
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While on his jobs, Colter often has close calls with law enforcement, leading Reenie, a lawyer, to swoop in and save the day.—
Angel Saunders,
PEOPLE,
22 Oct. 2025
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And most of these jobs don’t require a computer science degree or even coding skills.—
Kim Komando The Kim Komando Show,
FOXNews.com,
21 Oct. 2025
Noun
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Pursued by brutal mercenaries and a deadly assassin, the trio must navigate twists, betrayals and historical secrets buried deep in Europe’s past.—
Leo Barraclough,
Variety,
22 Oct. 2025
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Mistaken for the world’s deadliest assassin, Ben becomes the perfect decoy for Eden.—
Matt Grobar,
Deadline,
20 Oct. 2025
Adjective
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However, as Chambers’ trial kicked off on Friday, her attorney, Mark Thiessen, suggested an alternate reason for the deadly crash.—
Julia Bonavita,
FOXNews.com,
21 Oct. 2025
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Because gas leaks can lead to fires or explosions, and CO can be deadly even in small amounts, both types of detectors are critical for home kitchen safety.—
Lauren Bengtson,
Better Homes & Gardens,
21 Oct. 2025
Adjective
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The stalemate over funding in Washington comes at a challenging time for the more than 40 million Americans carrying education debt.—
Annie Nova,
CNBC,
21 Oct. 2025
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According to construction manager John Kearns, the oceans swells became too challenging, moving the barge too much for the crane to operate safely.—
Ashley Miznazi,
Miami Herald,
21 Oct. 2025
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 29 Oct. 2025.
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