1
as in hazardous
involving potential loss or injury
the soldiers were specially selected to go on a dangerous mission behind enemy lines
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in harmful
causing or capable of causing harm
the common knowledge that smoking is dangerous to one's health hasn't stopped some people
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
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Recent Examples of dangerous
The Rookie‘s most expensive episodes this season include the opener shot in Prague, the Con Air homage with dangerous criminals being transported by a plane and the major explosion at the Mid-Wilshire station.
—
Nellie Andreeva, Deadline, 13 Apr. 2026
In the decades since, robots have shown up at countless other scenarios where sending a human being first was simply too dangerous.
—New Atlas, 13 Apr. 2026
But research suggests users can get around safeguards against dangerous capabilities such as creating pathogens.
—Tom Chivers, semafor.com, 13 Apr. 2026
The Avs don’t require a first-round challenge, and the Predators are dangerous enough to make things interesting.
—Troy Renck, Denver Post, 13 Apr. 2026
See All Example Sentences for dangerous
Nellie Andreeva, Deadline, 13 Apr. 2026
In the decades since, robots have shown up at countless other scenarios where sending a human being first was simply too dangerous.
—New Atlas, 13 Apr. 2026
But research suggests users can get around safeguards against dangerous capabilities such as creating pathogens.
—Tom Chivers, semafor.com, 13 Apr. 2026
The Avs don’t require a first-round challenge, and the Predators are dangerous enough to make things interesting.
—Troy Renck, Denver Post, 13 Apr. 2026
See All Example Sentences for dangerous
Recent Examples of Synonyms for dangerous
Adjective
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Strong longshore currents can sweep swimmers and surfers into rip currents, piers, jetties and other hazardous areas.—
NC Weather Bot,
Charlotte Observer,
8 Apr. 2026
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In the 1990s, FDOT concluded that I-395, the mile-long elevated highway built in the late 1960s to connect the new Interstate 95 and the MacArthur Causeway, was hazardous and structurally and functionally obsolete.—
Andres Viglucci,
Miami Herald,
8 Apr. 2026
Adjective
-
The new safety measures come after a barrage of lawsuits from families alleging the platform doesn't do enough to shield children from harmful content and communication with older users.—
Mary Cunningham,
CBS News,
13 Apr. 2026
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Vaccines can train your immune system to recognize and fight harmful germs.—
Sukhman Rekhi,
Verywell Health,
13 Apr. 2026
Adjective
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Even if the Bengals prefer to rely on Carter and Knight’s development, risky but not crazy, the lack of pedigree surrounding them is startling.—
Paul Dehner Jr,
New York Times,
7 Apr. 2026
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The researchers also cautioned that all-night broadband noise may be especially risky for children, who spend significantly more time in REM sleep.—
Allison Palmer,
Miami Herald,
7 Apr. 2026
Adjective
-
Red-eared sliders have had a detrimental impact on our native turtle populations.—
Stephen Underwood,
Hartford Courant,
7 Apr. 2026
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Researchers are still unsure about how detrimental the blood changes could be to the sharks’ health.—
Devika Rao,
TheWeek,
7 Apr. 2026
Adjective
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The bloc doesn’t have a mechanism to expel a wayward member, but Western diplomats told me that brazen electoral theft would inaugurate a perilous new era.—
Isaac Stanley-Becker,
The Atlantic,
10 Apr. 2026
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Four astronauts are preparing for a perilous return through Earth's atmosphere to make a splashdown near California and put the finishing touches on a moon-circling mission that will etch their names in history.—
Eric Lagatta,
USA Today,
10 Apr. 2026
Adjective
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Prepare The Area Before starting your deck project, protect the lawn and any nearby landscaping from damaging chemicals and foot traffic with plastic sheeting or tarps.—
Karen Brewer Grossman,
Southern Living,
10 Apr. 2026
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As a stretch of severe weather begins in central states this weekend, damaging gusts, hail and a few tornadoes are possible.—
Matthew Cappucci,
Washington Post,
10 Apr. 2026
Adjective
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The driver of the oncoming car was taken to a hospital with serious injuries, and the three passengers died.—
Charlotte Phillipp,
PEOPLE,
10 Apr. 2026
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The three men who were shot were taken to a hospital, with one patient in serious condition and two in critical condition, a Fire Department spokesperson said.—
Lillie Davidson,
Fort Worth Star-Telegram,
9 Apr. 2026
Adjective
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The charity seeks the court’s intervention, protection, and restitution following a coordinated adverse media campaign conducted since 25 March 2025 that has caused operational disruption and reputational harm to the charity, its leadership, and its strategic partners.—
Dominic Patten,
Deadline,
10 Apr. 2026
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Extend it to four seconds to ensure safe spacing in adverse conditions.—
Bay Area Weather Report,
Mercury News,
10 Apr. 2026
Cite this Entry
“Dangerous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dangerous. Accessed 14 Apr. 2026.
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