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
John Annese, New York Daily News, 9 Apr. 2026
The Gilgo Beach investigation began in earnest in 2010 after police found numerous sets of human remains along a remote beach highway on Long Island’s South Shore, setting off a search for a potential serial killer that attracted global interest and spawned a Hollywood movie.
—ABC News, 8 Apr. 2026
The case went cold for many years before it was picked back up in 2022 by a task force designed to catch the Long Island serial killer.
—Britta Miller, The Washington Examiner, 8 Apr. 2026
Investigators suspected a serial killer, but for over 10 years, no arrests were made.
—Kelsey Lentz, PEOPLE, 8 Apr. 2026
See All Example Sentences for killer
Noun
No more killer cops are going free!
—John Annese, New York Daily News, 9 Apr. 2026
The Gilgo Beach investigation began in earnest in 2010 after police found numerous sets of human remains along a remote beach highway on Long Island’s South Shore, setting off a search for a potential serial killer that attracted global interest and spawned a Hollywood movie.
—ABC News, 8 Apr. 2026
The case went cold for many years before it was picked back up in 2022 by a task force designed to catch the Long Island serial killer.
—Britta Miller, The Washington Examiner, 8 Apr. 2026
Investigators suspected a serial killer, but for over 10 years, no arrests were made.
—Kelsey Lentz, PEOPLE, 8 Apr. 2026
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
-
Matterhorn Fit treats ailments that affect the neck, back and pelvis, which include sciatica, herniated discs, spinal stenosis, piriformis syndrome, thoracic pain, cervical pain, sports hernia recovery and cervicogenic headache.—
Sean Krofssik,
Hartford Courant,
5 Apr. 2026
-
Symptoms generally appear within one or two weeks of infection, and can include fever, headache, rash and body aches.—
City News Service,
Daily News,
3 Apr. 2026
Noun
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The murderer, on a road trip from Iowa, had been stranded in Wayne County after hitting an elk and totaling his truck.—
Stephen Trimble,
Denver Post,
8 Apr. 2026
-
But what starts as a hunt for a murderer escalates into an undercover operation to foil a Far-Right bomb plot in the heart of London.—
Denise Petski,
Deadline,
8 Apr. 2026
Adjective
-
Actor Philip Seymour Hoffman was found dead in 2014 with a syringe in his arm and a lethal combination of heroin, cocaine, benzodiazepines and amphetamine in his system.—
Jack Hannah,
CNN Money,
8 Apr. 2026
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The judge had ordered that the curtains to the official witness room be opened earlier during a lethal injection, allowing witnesses to observe the inmate being secured with restraints to a gurney and the IV insertion process itself.—
ABC News,
ABC News,
8 Apr. 2026
Adjective
-
Such claims of penury, however, were difficult to square with certain facts.—
Patrick Radden Keefe,
New Yorker,
13 Apr. 2026
-
Over time, my relationship with my wife has become very difficult.—
R. Eric Thomas,
Chicago Tribune,
12 Apr. 2026
Noun
-
The jobs help generate nearly $3 billion in annual economic output, according to estimates from the Pennsylvania Manufacturers' Association.—
Stephanie Armour,
CBS News,
13 Apr. 2026
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New Gallup polling finds that while more employees are using AI frequently in their work, there’s been an uptick in alarm that new technologies will replace their jobs.—
ABC News,
ABC News,
13 Apr. 2026
Noun
-
Their efforts lead them in the season’s last two episodes to Paris, where Frank was planning to celebrate his 80th birthday with his children — only for him to be gunned down in a hotel lobby by an assassin who had been sent to kill Teddy for a deal gone wrong.—
Max Gao,
Variety,
11 Apr. 2026
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Neither of these two is necessarily a lip-sync assassin.—
Jason P. Frank,
Vulture,
11 Apr. 2026
Adjective
-
These rules had been tightened since 2020, when relations soured following a deadly border skirmish in the Galwan Valley, where several Indian and Chinese soldiers died.—
Priyanka Salve,
CNBC,
7 Apr. 2026
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Simple precautions — avoiding unattended charging, unplugging when full, and keeping larger devices away from exits — can prevent deadly battery fires.—
Fedor Zarkhin,
Los Angeles Times,
6 Apr. 2026
Adjective
-
Without adequate feedback, support and professional development, employees are likely to seek a more challenging environment.—
Ashton Jackson,
CNBC,
8 Apr. 2026
-
Engage your brain through reading and intellectually challenging tasks.—
Rob Williams,
EverydayHealth.com,
8 Apr. 2026
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 14 Apr. 2026.
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