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
Melanie Goodfellow, Deadline, 31 July 2025
Tsarnaev had been trying to toss the federal judge from the case, as the killer fights to dodge a death sentence.
—Rick Sobey, Boston Herald, 31 July 2025
As a mysterious killer targets the dancers of Labios de Oro, deception deepens and danger closes in.
—Anna Marie De La Fuente, Variety, 31 July 2025
In 1991: Serial killer and cannibal Jeffrey Dahmer was arrested by two Milwaukee police officers, Robert Rauth and Rolf Mueller.
—Lorenzino Estrada, AZCentral.com, 23 July 2025
See All Example Sentences for killer
Noun
When their clients start falling victim to the killer, their lives and relationship are pushed to the limit.
—Melanie Goodfellow, Deadline, 31 July 2025
Tsarnaev had been trying to toss the federal judge from the case, as the killer fights to dodge a death sentence.
—Rick Sobey, Boston Herald, 31 July 2025
As a mysterious killer targets the dancers of Labios de Oro, deception deepens and danger closes in.
—Anna Marie De La Fuente, Variety, 31 July 2025
In 1991: Serial killer and cannibal Jeffrey Dahmer was arrested by two Milwaukee police officers, Robert Rauth and Rolf Mueller.
—Lorenzino Estrada, AZCentral.com, 23 July 2025
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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In the early stages, people may experience fatigue, fever, headaches, muscle aches, and a distinctive bull’s-eye rash.—
Tiffany Acosta,
AZCentral.com,
3 Aug. 2025
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Economic Worries Add To Pressure Economic concerns are also causing a headache for the Trump administration, with multiple recent polls showing a downward trend in the president's approval rating on his handling of the economy and inflation.—
Martha McHardy,
MSNBC Newsweek,
2 Aug. 2025
Noun
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About two weeks after a man was shot and killed in his car at a Miami-Dade flea market, deputies caught the alleged murderer on Thursday and uncovered a sordid tale of a five-year affair that led to the murder.—
Devoun Cetoute,
Miami Herald,
26 July 2025
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An evil wealthy guy who funds murderers to support his own sicko obsession?—
Roxana Hadadi,
Vulture,
25 July 2025
Adjective
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For its lethal injection, Florida uses a combination of a sedative, a paralytic and a drug that stops the heart, the outlet reported, citing the state Department of Corrections.—
Lesley Cosme Torres,
People.com,
1 Aug. 2025
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Zakrzewski is set to be executed by lethal injection at 6 p.m. ET on Thursday at the at Florida State Prison in Railford, about 45 miles southwest of Jacksonville.—
Amanda Lee Myers,
USA Today,
31 July 2025
Adjective
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Some students may face family challenges that affect their ability to get to school, and some changes to the State of Texas Assessments of Academic Readiness test, such as its move to online instead of paper form, could be difficult for students who only access computers at school, Maldonado said.—
Keri Heath,
Austin American Statesman,
30 July 2025
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Diseases that are difficult to manage without early intervention, including diabetes, heart disease and cancer, place a significant burden on health care budgets and patient quality of life.—
Kim Praitano,
Sun Sentinel,
29 July 2025
Noun
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Data showed across seven Valley cities that there were 158 full-time employees with a park ranger job title.—
Maritza Dominguez,
AZCentral.com,
24 July 2025
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Great companies create cultures where ideas matter more than job titles.—
JJ Rosen,
The Tennessean,
24 July 2025
Noun
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Ten years later, Jack and Jackie fell in love—and two months later, Jack was killed by an assassin’s bullet in Dallas, Texas.—
Rachel Burchfield,
Forbes.com,
19 July 2025
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After 50-plus years behind bars, Houten walked out in 2023. — In 2022, Newsom rejected the release of Robert F. Kennedy assassin Sirhan Sirhan — which parole commissioners had recommended.—
Sean Emery,
Oc Register,
17 July 2025
Adjective
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The man faces five criminal charges including unlawful possession of a firearm by a serious violent felon and criminal recklessness with a deadly weapon.—
Jordan Smith,
IndyStar,
31 July 2025
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The clinic helps prevent the spread of this deadly disease in the U.S.—
Nicole Villalpando,
Austin American Statesman,
31 July 2025
Adjective
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In life and the garden: Try to be tolerant, don’t demand perfection and figure out how to improve challenging, tough situations.—
Rita Perwich,
San Diego Union-Tribune,
2 Aug. 2025
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Students who have a plan can better anticipate what to expect and manage their time and energy, even during the challenging moments. Don’t have a strategy?—
Micki Meyer,
The Orlando Sentinel,
2 Aug. 2025
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 6 Aug. 2025.
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