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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Example Sentences
Examples are automatically compiled from online sources to
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Recent Examples of killer
Rosy Cordero,
Deadline,
29 June 2026
The three-time Grand Slam doubles champion has a varied game with a killer serve, and she won’t be intimidated by Świątek.
—
Ava Wallace,
New York Times,
29 June 2026
If cicada killer wasps are causing damage or posing a risk, call a professional pest control service for help.
—
Michelle Mastro,
Martha Stewart,
29 June 2026
However, the identity of the killer remains unknown, and the murder is one of the most famous unsolved murder cases, inspiring numerous books, films, and television shows.
—
Encyclopedia Britannica,
29 June 2026
See All Example Sentences for killer
Noun
Considering her Season 1 character Mia, aka Lady Vengeance, a serial killer by night and sommelier by day, was killed while jailed, is anyone’s guess.
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Rosy Cordero,
Deadline,
29 June 2026
The three-time Grand Slam doubles champion has a varied game with a killer serve, and she won’t be intimidated by Świątek.
—
Ava Wallace,
New York Times,
29 June 2026
If cicada killer wasps are causing damage or posing a risk, call a professional pest control service for help.
—
Michelle Mastro,
Martha Stewart,
29 June 2026
However, the identity of the killer remains unknown, and the murder is one of the most famous unsolved murder cases, inspiring numerous books, films, and television shows.
—
Encyclopedia Britannica,
29 June 2026
See All Example Sentences for killer
Recent Examples of Synonyms for killer
Noun
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Intense exercise on a sizzling day can lead to extreme fatigue, impaired performance, headache, irritability, nausea, dizziness, cramping and dehydration, all symptoms of exertional heat illness.
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Hantavirus pulmonary syndrome causes fatigue, fever, muscle aches, abdominal problems, headaches, chills and dizziness in the early stages, and late symptoms include chest tightness, coughing, shortness of breath and lungs filling with fluid.
Noun
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This psychological thriller stars Guy Pearce as Leonard Shelby, a man with anterograde amnesia struggling to track down his wife’s murderer using a system of tattoos and notes.
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Deputy Solicitor General Eric Feigin said blocking such searches would handicap police searching for murderers, kidnappers and robbers.
Adjective
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The weather service also warns not to leave children or pets unattended in vehicles, as car interiors can reach lethal temperatures in a matter of minutes.
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At worst, the consequences can be lethal for mothers or babies.
Adjective
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Sarah Buck, Chicago Driving has become harder The rapid increase in bike lanes has made driving much more difficult and tedious, with numerous delays due to many streets being reduced to one lane in busy areas.
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Republican strategists have welcomed those nominations as an opening for attack in a difficult election year.
Noun
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Lee Feldman held the job for seven years until he was fired in 2018 by the commission.
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Proponents of the authorization note that the $155 million investment arrives four years after a severe drought in the Sacramento Valley in 2022 had cost local communities hundreds of millions of dollars and roughly 1,500 jobs.
Noun
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These artisans, with their trade secrets, were kept on Murano, a cluster of islands just across the lagoon from the city, ostensibly as a precaution against fire, though the state would also send assassins after anyone who tried to leave.
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As a pirate assassin and post-apocalyptic warrior, Krem of the Yellow Hills connects with Aries.
Adjective
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At the same time, vaccination rates have declined, worrying experts that more people could become vulnerable to this potentially deadly but preventable infection.
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The suspect, who has not yet been identified by police, was arrested in connection with the deadly shooting of 22-year-old Nasir Majied on Friday, June 5.
Adjective
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This enduring legacy, underscores the lawyer's role as an officer of the court, preserving the rule of law even when challenging authority.
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Educate your family on our country’s history, both good and challenging.
Cite this Entry
“Killer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/killer. Accessed 5 Jul. 2026.
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