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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Symptoms such as shortness of breath, chest pain or a severe headache could signal a medical emergency.—
CNN Money,
CNN Money,
3 Mar. 2026
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Symptoms include vomiting and diarrhea, nausea and stomach pain, body aches, headache and fever.—
Steven Rosenbaum,
CBS News,
27 Feb. 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
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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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Highways were jammed overnight and into Monday with people fleeing after what was Israel's deadliest barrage on Lebanon in more than a year, striking hours after Hezbollah fired missiles across the border for the first time in more than a year.—
FADI TAWIL,
Arkansas Online,
3 Mar. 2026
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The deadly attack is among 56 mass shootings in the US so far this year, according to the Gun Violence Archive.—
Amanda Musa,
CNN Money,
2 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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