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
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of killer
Todd Spangler, Variety, 4 Mar. 2026
The darkly comic crime drama pits Frances McDormand's righteously furious mom against a police force that hasn't caught her daughter's killer.
—Brian Truitt, USA Today, 4 Mar. 2026
The Ghostface killer attacks them, leaving two dead, including Lucas, impaled on a sharp beer tap handle.
—Nick Romano, Entertainment Weekly, 4 Mar. 2026
Natural weed killers use vinegar, iron, or essential oils to kill weeds.
—Brandee Gruener, Southern Living, 3 Mar. 2026
See All Example Sentences for killer
Noun
This series is the gripping tale of Paul’s real-time investigation into four murders related to Joe Naso, pitting one of America’s best detectives against one of its most prolific and deranged serial killers.
—Todd Spangler, Variety, 4 Mar. 2026
The darkly comic crime drama pits Frances McDormand's righteously furious mom against a police force that hasn't caught her daughter's killer.
—Brian Truitt, USA Today, 4 Mar. 2026
The Ghostface killer attacks them, leaving two dead, including Lucas, impaled on a sharp beer tap handle.
—Nick Romano, Entertainment Weekly, 4 Mar. 2026
Natural weed killers use vinegar, iron, or essential oils to kill weeds.
—Brandee Gruener, Southern Living, 3 Mar. 2026
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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Finn was experiencing headaches and nausea, which led to an emergency room visit and a sudden diagnosis.—
Jori Parys,
CBS News,
8 Mar. 2026
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Symptoms can include fever, headache, facial swelling, malaise and swelling of the salivary glands.—
Caelyn Pender,
Mercury News,
8 Mar. 2026
Noun
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The novel, Arnott’s first under her married name and subject to a bidding frenzy at the 2024 London Book Fair, reflects her long-standing fascination with murderers.—
Diane Garrett,
Los Angeles Times,
3 Mar. 2026
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The murderer and writer Jack Abbott was in prison when Mailer befriended him, and went on to kill again after Mailer lobbied for his release.—
James Verini,
New Yorker,
2 Mar. 2026
Adjective
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Many diseases are more infectious and more lethal than COVID-19 was, and the next such pandemic could prove to be our species’ undoing.—
Big Think,
Big Think,
4 Mar. 2026
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Nicholas and three of his playmates at the day care were poisoned by the lethal opioid, which the owners stored in a nap room, officials said.—
Sheetal Banchariya,
New York Daily News,
4 Mar. 2026
Adjective
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Anyone who has seen the way the space works today can recognize that there are a lot of families who find this very, very difficult right now.—
Anna Moeslein,
Glamour,
9 Mar. 2026
-
Demonstrating that was difficult due to natural fluctuations in temperatures.—
Los Angeles Times,
Los Angeles Times,
9 Mar. 2026
Noun
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Provost has pledged to use those lessons learned, with labor unions awaiting details as to whether this will have implications for jobs in France.—
Albertina Torsoli,
Bloomberg,
9 Mar. 2026
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As of December 2025, the Bureau of Labor Statistics has reported over 400,000 job openings.—
Atharva Gosavi,
Interesting Engineering,
9 Mar. 2026
Noun
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Soon, Cooper, Jordan and their reluctant new associates, Byron’s assassins Antonio (Anthony Ramos) and Jeremy (Jeremy Pope), find themselves in the crosshairs of a brewing war within the Forst family.—
Hunter Ingram,
Variety,
5 Mar. 2026
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Minnesota just had two lawmakers and their spouses shot by a political assassin.—
Drake Bentley,
jsonline.com,
3 Mar. 2026
Adjective
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Dan Morrison Eleven different countries have asked Ukraine for help in countering Iran's deadly Shahed drones, with request for interceptors, electronic warfare systems and training, Ukrainian Presiden Volodymyr Zelenskyy said Monday.—
Thao Nguyen,
USA Today,
10 Mar. 2026
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Yet Aster diagnoses them, and everyone else, with a deadly case of social media brain rot.—
Amy Nicholson,
Los Angeles Times,
10 Mar. 2026
Adjective
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According to Hermeus, developing aircraft capable of such speeds remains one of the most challenging areas of aerospace engineering.—
Jijo Malayil,
Interesting Engineering,
5 Mar. 2026
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Subscribe now Kennedy’s girls basketball team continued to show its growth with freshman Ta’Niya Paul on Tuesday during a challenging Division IV first-round game in the CIF Southern California Regional.—
Dan Albano,
Oc Register,
4 Mar. 2026
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 10 Mar. 2026.
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