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.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of dangerous
Wind gusts topping 50 mph are expected to further reduce visibility and create dangerous travel conditions.
—
Brandi D. Addison, USA Today, 23 Feb. 2026
But Miller said most of the backcountry isn’t dangerous avalanche terrain.
—Los Angeles Times, 23 Feb. 2026
But the brutishness has merely relocated, to places far more dangerous.
—Ian Buruma, New Yorker, 23 Feb. 2026
Colder air will move in after dark with increasing snow intensity expected and roadways becoming dangerous.
—Ca Weather Bot, Sacbee.com, 17 Feb. 2026
See All Example Sentences for dangerous
Brandi D. Addison, USA Today, 23 Feb. 2026
But Miller said most of the backcountry isn’t dangerous avalanche terrain.
—Los Angeles Times, 23 Feb. 2026
But the brutishness has merely relocated, to places far more dangerous.
—Ian Buruma, New Yorker, 23 Feb. 2026
Colder air will move in after dark with increasing snow intensity expected and roadways becoming dangerous.
—Ca Weather Bot, Sacbee.com, 17 Feb. 2026
See All Example Sentences for dangerous
Recent Examples of Synonyms for dangerous
Adjective
-
Inspectors found shortcomings such as employing unqualified instructors, failing to test students’ skills or teach them how to handle hazardous materials and using the wrong equipment to teach drivers.—
Josh Funk,
Los Angeles Times,
19 Feb. 2026
-
An image of public entities failing to comply with the law about lead paint, hazardous trash collection, or other public hazards.—
Emily Galvin Almanza,
Literary Hub,
18 Feb. 2026
Adjective
-
And some types of glyphosates may be more harmful than others.—
Michal Ruprecht,
CNN Money,
24 Feb. 2026
-
In addition to its harmful systemic effects, consuming alcoholic beverages is linked with the loss of dietary restraint and overconsumption of calories.—
Anna Giorgi,
Verywell Health,
23 Feb. 2026
Adjective
-
Even searching for information online can be risky.—
Sophie Spiegelberger,
New Yorker,
24 Feb. 2026
-
This can be less costly upfront than buying stocks, but can also be riskier, because options expire and a small move in a stock’s price can translate into a big swing in the value of options contracts.—
Alex Veiga,
Fortune,
23 Feb. 2026
Adjective
-
Reactions allegedly manipulate young people and play on their emotions in ways detrimental to mental health and well-being.—
Michael McCann,
Sportico.com,
24 Feb. 2026
-
In mice with the bacterial infection, fasting was protective while nutritional supplementation was detrimental, the authors found.—
The Washington Post,
San Diego Union-Tribune,
24 Feb. 2026
Adjective
-
But the unstable snowpack, high winds and whiteout conditions made search-and-recovery efforts too perilous, prompting first responders to leave behind the bodies of deceased skiers and suspend operations on Wednesday and Thursday.—
Tony Briscoe,
Los Angeles Times,
22 Feb. 2026
-
The island is a stop on one of the deadliest migration routes in the world, and migrants who arrive there have often made a perilous journey across the sea.—
Rebecca Schneid,
Time,
21 Feb. 2026
Adjective
-
But his man-of-the-people image has suffered some serious blows over the past year, and a corruption scandal has proved particularly damaging to a president elected on a promise to clean up politics.—
Ivana Kottasová,
CNN Money,
20 Feb. 2026
-
But separating them from one another is difficult and often environmentally damaging.—
Neetika Walter,
Interesting Engineering,
20 Feb. 2026
Adjective
-
Fajardo-Acosta described him as an extremely serious person who also possessed a good sense of humor, spoke very eloquently and read all the time.—
Clara Harter,
Los Angeles Times,
20 Feb. 2026
-
Lawmaker Jorge Arreaza, who presented the bill, highlighted these carve-outs to ensure the measure does not shield serious offenses.—
Alessandra Freitas,
CNN Money,
20 Feb. 2026
Adjective
-
There are various pieces of gear designed for skiing in adverse avalanche conditions, Antibus said.—
Don Sweeney,
Sacbee.com,
21 Feb. 2026
-
Just under 6% of the 3,770 cases the board closed in 2024 resulted in adverse public action, according to the board’s annual report.—
Amber Gaudet
Updated February 20,
Charlotte Observer,
20 Feb. 2026
Cite this Entry
“Dangerous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dangerous. Accessed 26 Feb. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
