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
Dana Rose Falcone, People.com, 20 Mar. 2025
The killer quad of droughts, wildfires, flooding, and hurricanes, have not worsened over the last fifty years, even though the global temperature has risen 1°C.
—Ian Dexter Palmer, Forbes, 20 Mar. 2025
The celebs must unmask the killer before they’re all bumped off.
—Stewart Clarke, Deadline, 20 Mar. 2025
The Eagles will look back at a couple of late turnovers and misfires — and coach Duane Simpkins’ late technical foul for an overly theatrical reaction to a foul call — as momentum killers for a rally that almost had Mount St. Mary’s shaken.
—The Athletic Staff, The Athletic, 20 Mar. 2025
See All Example Sentences for killer
Noun
The Emmy nominee’s decades of experience have also given him the ability to easily leave behind a heavy day on set, such as one that entailed playing a serial killer in Happy Face.
—Dana Rose Falcone, People.com, 20 Mar. 2025
The killer quad of droughts, wildfires, flooding, and hurricanes, have not worsened over the last fifty years, even though the global temperature has risen 1°C.
—Ian Dexter Palmer, Forbes, 20 Mar. 2025
The celebs must unmask the killer before they’re all bumped off.
—Stewart Clarke, Deadline, 20 Mar. 2025
The Eagles will look back at a couple of late turnovers and misfires — and coach Duane Simpkins’ late technical foul for an overly theatrical reaction to a foul call — as momentum killers for a rally that almost had Mount St. Mary’s shaken.
—The Athletic Staff, The Athletic, 20 Mar. 2025
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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Avantree Cord Organizer $7 at Amazon Cord clutter is a universal travel headache.—
Rosie Marder,
Travel + Leisure,
23 Mar. 2025
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While blazes like this one can be a major headache for people, fire is also a critical part of South Florida’s ecosystem — particularly the Everglades.—
Alex Harris,
Miami Herald,
22 Mar. 2025
Noun
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There will also not be a murderer found until the show’s conclusion, but don’t ask anyone who’s seen the beloved whodunit.—
David John Chávez,
Mercury News,
27 Mar. 2025
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More often, alleged female murderers are reviled or belittled.—
Jean Casarez,
CNN,
25 Mar. 2025
Adjective
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All are set to be executed by lethal injection except Mahdi, who has until next week to choose between lethal injection, the firing squad or the electric chair.—
Amanda Lee Myers,
USA TODAY,
21 Mar. 2025
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In Florida, death row inmates who choose lethal injection receive a three-drug cocktail consisting of a sedative, a paralytic and a heart-stopping drug, according to the Death Penalty Information Center.—
Elizabeth Pritchett,
Fox News,
21 Mar. 2025
Adjective
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There are very big match-ups being played week in and week out in what is one of the most difficult leagues to play in on the planet, this means the big contenders will drop points more often than in some other leagues.—
Joseph O'Sullivan,
Forbes.com,
1 Apr. 2025
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Generations of design successors have insisted that pie charts are difficult to read and even amount to optical informatic illusions, but we are still stuck with them.—
Mara Mills,
Artforum,
1 Apr. 2025
Noun
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Last summer, it was reported in the UK’s Times newspaper that he was being considered for the manager’s job at leading Portuguese side Porto.—
Simon Hughes,
The Athletic,
23 Mar. 2025
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Across the videos related to job titles, 50 percent of women were depicted as smiling, while no men were, a result which reflects emotional expectations around gender, says Gaeta.—
Reece Rogers,
WIRED,
23 Mar. 2025
Noun
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This stony assassin may well be orbiting the sun at this very moment, careening down a celestial path that could, one day, intersect with ours.—
Corinne Purtill,
Los Angeles Times,
26 Mar. 2025
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Police cars arrived within minutes and the assassin was arrested.—
Rachel DeSantis,
People.com,
22 Mar. 2025
Adjective
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She was originally charged with manslaughter – typical in a deadly hit-and-run case – but authorities later tacked on the murder charge.—
Michael Ruiz,
FOXNews.com,
1 Apr. 2025
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As fate would have it, the very destructive and deadly wildfires that swept through Los Angeles neighborhoods this year erupted as its city officials were struggling to close a large gap in their budget.—
Dan Walters,
Mercury News,
1 Apr. 2025
Adjective
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Join 27 others in the comments View Comments The more surgeries that are performed over a lifetime, the higher potential there is for traumatized tissue, Dr. Truesdale added, noting that revision operations are inherently more challenging.—
Leah Dolan,
CNN,
22 Mar. 2025
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Even though the most challenging cities were concentrated in the southern and eastern parts of the country, the West saw some changes.—
Taylor Johnston,
CBS News,
21 Mar. 2025
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 4 Apr. 2025.
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