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
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Recent Examples of dangerous
The Playground Association of America was founded in 1906, to give city children a place to play besides the crowded, dangerous streets; the Boy Scouts followed, in 1910.
—
Alexandra Schwartz, New Yorker, 9 Feb. 2026
Authorities emphasized that both escapees should be considered dangerous.
—Cbs News Atlanta Digital Team, CBS News, 9 Feb. 2026
Meta and Google, two of the most powerful companies in history, have long rejected claims their social media platforms are inherently dangerous for kids.
—Nancy Dillon, Rolling Stone, 9 Feb. 2026
Not all illnesses are equally dangerous, and not all people are equally susceptible to those illnesses.
—Sara Moniuszko, USA Today, 9 Feb. 2026
See All Example Sentences for dangerous
Alexandra Schwartz, New Yorker, 9 Feb. 2026
Authorities emphasized that both escapees should be considered dangerous.
—Cbs News Atlanta Digital Team, CBS News, 9 Feb. 2026
Meta and Google, two of the most powerful companies in history, have long rejected claims their social media platforms are inherently dangerous for kids.
—Nancy Dillon, Rolling Stone, 9 Feb. 2026
Not all illnesses are equally dangerous, and not all people are equally susceptible to those illnesses.
—Sara Moniuszko, USA Today, 9 Feb. 2026
See All Example Sentences for dangerous
Recent Examples of Synonyms for dangerous
Adjective
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The study, and the training, include best practices for handling and disposing of hazardous waste, Gabriel said.—
Rachel Becker,
Los Angeles Times,
12 Feb. 2026
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At least 12 of the 169 chemicals detected in the new analysis have been associated with cancer, birth defects and reproductive issues and are included in California’s Proposition 65 hazardous chemicals list.—
Aude Konan,
Scientific American,
11 Feb. 2026
Adjective
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In order to rule in her favor, jurors will have to parse the harmful actions of fellow users — including her high school bullies and adult men sending her unsolicited nudes — from design decisions made by the companies themselves.—
Sonja Sharp,
Los Angeles Times,
9 Feb. 2026
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Many of these jars contain unknown or poorly documented chemical mixtures that could be toxic to humans or harmful to the specimens themselves if disturbed.—
Neetika Walter,
Interesting Engineering,
9 Feb. 2026
Adjective
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As procedures have become more precise, recovery times shorter, and complications rarer, surgeons have grown more willing to operate in cases once considered too risky.—
Chris Pope,
Washington Post,
10 Feb. 2026
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Dismissing the benefits of precious metals in this climate, then, could be both risky and counterproductive.—
Matt Richardson,
CBS News,
9 Feb. 2026
Adjective
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Without a doubt, the MAGA approach to immigration has resulted in detrimental effects to how the Constitution works in our system of justice.—
Rebecca Noel,
Charlotte Observer,
6 Feb. 2026
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The opposite, overwatering, is also detrimental because the seeds may rot.—
Megan Hughes,
Better Homes & Gardens,
28 Jan. 2026
Adjective
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To do so would be rude, politically perilous, insulting to our biggest trade partner and just plain weird.—
Gustavo Arellano,
Los Angeles Times,
6 Feb. 2026
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Not an easy task at a moment of perilous global politics.—
Kelly Lawler,
USA Today,
6 Feb. 2026
Adjective
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Large hail up to quarter size and damaging winds of up to 60 mph are possible both Friday and Saturday afternoon and evenings.—
Isa Almeida,
Oklahoman,
12 Feb. 2026
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But growth stalled, due both to the pandemic and damaging revelations about Glossier’s corporate culture during the racial justice movement following the murder of George Floyd.—
Jenny B. Fine,
Footwear News,
11 Feb. 2026
Adjective
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In a statement to NBC News, Daiichi Sankyo, which makes Savaysa, said that the drug is used to reduce the risk of stroke and clots but added that anticoagulants can increase the risk of serious bleeding.—
David Cox,
NBC news,
5 Feb. 2026
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Many of these people had been charged with serious crimes like assaulting security officers or bus and train operators, weapons possession, or threatening drivers.—
Amber Gaudet
Updated February 5,
Charlotte Observer,
5 Feb. 2026
Adjective
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That agreement committed both nations to consult on security issues and respond to adverse challenges.—
NINIEK KARMINI,
Arkansas Online,
8 Feb. 2026
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This fragmentation creates blind spots that contribute to adverse drug events, duplication of therapy and inefficient care and harms that ultimately drive up total health care costs.—
Sreedhar Potarazu,
Baltimore Sun,
7 Feb. 2026
Cite this Entry
“Dangerous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dangerous. Accessed 15 Feb. 2026.
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