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
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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
Jake Kanter, Deadline, 12 Sep. 2025
Dry washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall.
—Anna Skinner, MSNBC Newsweek, 12 Sep. 2025
The killer’s motive is not clear yet, nor is the full political and cultural impact of Kirk’s death.
—Charlie Warzel, The Atlantic, 12 Sep. 2025
The search for his killer remains ongoing.
—Russell Leung, CNBC, 11 Sep. 2025
See All Example Sentences for killer
Noun
The manhunt for Kirk’s alleged killer appears to have come to an end.
—Jake Kanter, Deadline, 12 Sep. 2025
Dry washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall.
—Anna Skinner, MSNBC Newsweek, 12 Sep. 2025
The killer’s motive is not clear yet, nor is the full political and cultural impact of Kirk’s death.
—Charlie Warzel, The Atlantic, 12 Sep. 2025
The search for his killer remains ongoing.
—Russell Leung, CNBC, 11 Sep. 2025
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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In a recent study by Climate Rights International, workers spoke of experiencing excessive sweating, headaches, fever, nausea, heat palpitations, dehydration and temporary vision loss.—
Jasmin Malik Chua,
Sourcing Journal,
10 Sep. 2025
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Soldiers reported headaches and nausea, leading Congress to cut funding in 2022.—
Aamir Khollam,
Interesting Engineering,
10 Sep. 2025
Noun
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The main competition has in the Limited Series category now that The White Lotus has been booted out is Adolescence, the huge hit on Netflix about a teen murderer that featured incredible performances and four, one-shot episodes that practically seemed impossible to film.—
Paul Tassi,
Forbes.com,
8 Sep. 2025
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He’s joined by another (somewhat literal) murderers’ row of actors including Glenn Close, Josh Brolin, Mila Kunis, Kerry Washington, Cailee Spaeny, Andrew Scott, and Thomas Haden Church.—
Christian Blauvelt,
IndieWire,
8 Sep. 2025
Adjective
-
The most recent execution via firing squad in the United States occurred in South Carolina, where Brad Sigmon, 67, was executed in March, opting for the method instead of the electric chair or lethal injection.—
Amanda Castro
Joshua Rhett Miller,
MSNBC Newsweek,
12 Sep. 2025
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While officers in the garage tried to find Cook’s firearm before approaching him, Miller from outside the front of the house gave commands to other officers to retrieve a shield and a 40mm less-lethal projectile launcher, the reports showed.—
Alex Brizee,
Idaho Statesman,
11 Sep. 2025
Adjective
-
Ncell, Nepal’s second-largest telecommunications service provider, noted that shutting down all platforms at once was, in any case, technically difficult and warned that the move would severely impact business.—
Nir Kshetri,
The Conversation,
14 Sep. 2025
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Last summer, after years of hip problems and some difficult surgeries to address them, Jill had an operation that went poorly.—
Bianca Bosker,
The Atlantic,
14 Sep. 2025
Noun
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Duncan Wanblad, chief executive of Anglo, will take the top job and Anglo Teck while Teck’s chief executive Jonathan Price, will be his deputy.—
Tim Treadgold,
Forbes.com,
10 Sep. 2025
-
That’s when Billy Napier accepted the Florida job.—
Maddie Hartley,
Kansas City Star,
10 Sep. 2025
Noun
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The prominent conservative influencer Charlie Kirk was struck in the neck by an assassin’s bullet.—
W. James Antle III,
The Washington Examiner,
12 Sep. 2025
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The search for Kirk’s assassin entered its third day Friday, with officials releasing new still photos of the person of interest, along with video of the person fleeing the scene after the shooting.—
Filip Timotija,
The Hill,
12 Sep. 2025
Adjective
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Over the past 48 hours, Nepal has been rocked by deadly mass protests led by young people who are frustrated over the country's leadership.—
Juliana Kim,
NPR,
10 Sep. 2025
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Rip currents are the deadliest of surf-zone dangers, making up the majority of deaths among beach swimmers every year, according to data from the National Oceanic and Atmospheric Administration.—
Jeanine Santucci,
USA Today,
10 Sep. 2025
Adjective
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To be sure, the last few years have been more challenging, with Gucci rapidly losing momentum — and Kering’s debt load swelling after an acquisition spree that included Creed, Maui Jim, a 30 percent stake in Valentino, and large chunks of prime real estate.—
Miles Socha,
Footwear News,
9 Sep. 2025
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Ultimately, gig engineering is becoming an attractive but challenging path.—
Srishti Gupta,
Interesting Engineering,
9 Sep. 2025
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 17 Sep. 2025.
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