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
Joe Otterson, Variety, 8 July 2025
Drowning is the No. 1 killer of children ages 1 to 4 and the second leading cause of unintentional injury death for children ages 5 to 14.
—Karen Cohn, The Orlando Sentinel, 7 July 2025
The first film saw Pattinson's Dark Knight tangoing with the Riddler (Paul Dano), a serial killer plaguing Gotham City.
—EW.com, 28 June 2025
Working with you seems complex Beyond confusion there’s another killer: complexity.
—Jodie Cook, Forbes.com, 27 June 2025
See All Example Sentences for killer
Noun
As previously reported, Charlie Hunnam will star as serial killer Ed Gein.
—Joe Otterson, Variety, 8 July 2025
Drowning is the No. 1 killer of children ages 1 to 4 and the second leading cause of unintentional injury death for children ages 5 to 14.
—Karen Cohn, The Orlando Sentinel, 7 July 2025
The first film saw Pattinson's Dark Knight tangoing with the Riddler (Paul Dano), a serial killer plaguing Gotham City.
—EW.com, 28 June 2025
Working with you seems complex Beyond confusion there’s another killer: complexity.
—Jodie Cook, Forbes.com, 27 June 2025
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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Some headaches are related to muscle tension and can be triggered by stress.9 Hot showers or baths promote relaxation.—
Mark Gurarie,
Verywell Health,
9 July 2025
-
These can seem like a real headache for a sole trader who does not have an HR department to take care of all this for them.—
Peter Boolkah,
Forbes.com,
8 July 2025
Noun
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Adolescence has continued to wow audiences as the show’s 15-year-old star, Owen Cooper, has landed a 2025 Emmy nomination for his role of teen murderer Jamie Miller.—
Lily Ford,
HollywoodReporter,
15 July 2025
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Based on true events, the Gorgona Island prison, 34 miles off the Pacific coast, was once one of the most brutal of tropical penitentiary for murderers, rapists and political prisoners, notorious for its use of torture.—
John Hopewell,
Variety,
15 July 2025
Adjective
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Police said less lethal munitions were deployed by federal authorities.—
Jenna Sundel
Gabe Whisnant,
MSNBC Newsweek,
5 July 2025
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The industrial and technological revolutions, also beginning in the 18th century, have made war vastly more destructive and lethal.—
Arthur I. Cyr,
Chicago Tribune,
2 July 2025
Adjective
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Our models and expertise can sniff out the broad parameters, but the precise location and timing of moisture plumes, training (quasi-stationary rain cells), and forcing mechanism can be difficult.—
Marshall Shepherd,
Forbes.com,
5 July 2025
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James is playing the final year of his contract at $52.6 million, which is a very difficult number for teams to pay.—
Evan Massey,
MSNBC Newsweek,
5 July 2025
Noun
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The project will create thousands of good-paying union jobs, boost economic activity, and better connect surrounding communities from New Jersey to Long Island.—
Carlo Scissura,
New York Daily News,
11 July 2025
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Photograph: Amazon Chi Original Ceramic Flat Iron $100 $46 (54% off) Amazon $100 Ulta Like a Honda Accord, this no-frills Chi straightener is reliable, timeless, and gets the job done—now just $50.—
Parker Hall,
Wired News,
11 July 2025
Noun
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PlayStation 5 Games Deals The Assassin's Creed franchise has been a staple in gaming consoles for nearly 20 years now, and Shadows, the latest iteration, furthers that tradition with a game that puts players behind Naoe, a shinobi assassin, and Yasuke, a legendary samurai.—
PC Magazine,
PC Magazine,
11 July 2025
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The details of how these would-be assassins got so close are still shrouded in mystery.—
Jenny Goldsberry,
The Washington Examiner,
10 July 2025
Adjective
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Texan communities are dealing with the impact of the deadly flash floods along the Guadalupe River, which have killed at least 80 people so far.—
Rebecca Schneid,
Time,
7 July 2025
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Yolo County authorities announced Saturday the discovery of seven bodies at the site of Tuesday’s deadly fireworks explosion in rural Yolo County, matching the number of individuals reported missing in the blast.—
Michael McGough
July 5,
Sacbee.com,
6 July 2025
Adjective
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The producer said getting his hands on an original copy of the Carter song on LP proved challenging, and expensive, signaling a cult following for such music.—
Miles Socha,
Footwear News,
9 July 2025
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Gap Easy Trousers Finding summer work pants that are both breathable and stylish can be challenging, but these petite Easy Trousers from Gap fit the bill perfectly.—
Melony Forcier,
Travel + Leisure,
9 July 2025
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 19 Jul. 2025.
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