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
Early signals show a growing chance of dangerous heat building across the South, Southeast and into parts of the Mid-Atlantic during the days leading up to the holiday.
—
Brandi D. Addison,
USA Today,
22 June 2026
One study says people globally suffered an average of 41 extra days of dangerous heat in 2024.
—
Alexa St. John,
Fortune,
22 June 2026
Public safety officials issued an emergency alert about an armed and dangerous suspect in the area, asking residents to shelter in place.
—
ABC News,
22 June 2026
Before some of the storms develop, there will be dangerous heat to contend with.
—
Troy Bridges,
CBS News,
22 June 2026
See All Example Sentences for dangerous
Brandi D. Addison,
USA Today,
22 June 2026
One study says people globally suffered an average of 41 extra days of dangerous heat in 2024.
—
Alexa St. John,
Fortune,
22 June 2026
Public safety officials issued an emergency alert about an armed and dangerous suspect in the area, asking residents to shelter in place.
—
ABC News,
22 June 2026
Before some of the storms develop, there will be dangerous heat to contend with.
—
Troy Bridges,
CBS News,
22 June 2026
See All Example Sentences for dangerous
Recent Examples of Synonyms for dangerous
Adjective
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Concrete casing and tubing – used to seal and extract oil – can lose integrity, causing leaks and potential hazardous gas releases.
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Concerns about hazardous chemicals led police to suggest residents evacuate, although many declined.
Adjective
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The plasma process also produced very little smoke or tar, reducing harmful secondary pollutants typically associated with biomass conversion and making the technology a cleaner way to produce renewable solid fuel.
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At the same time, its flowers attract beneficial predatory insects, such as ladybugs and parasitic wasps, that naturally hunt harmful garden pests.
Adjective
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Achraf Hakimi looked to have another opportunity to take an open shot on goal in the 54th minute, until Dutch defender Micky van de Ven chased him down and made a risky tackle in the goal box.
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The groups that brought the lawsuit said the rule would require students to forgo their studies or take out riskier private loans.
Adjective
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According to 24/7 Wall Street, the $60 billion all-stock AI company Anysphere acquisition, a $20 billon debt offering, and the future end of the lockup have been particularly detrimental to the maintenance of the share prices.
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There’s also the thought that onboarding a starting catcher midseason can be detrimental to a pitching staff, something that Yankees general manager Brian Cashman has expressed in the past.
Adjective
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Understanding the gravity of a red flag warning and adhering to these precautions is pivotal in mitigating the risk of wildfires during these perilous conditions.
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The Greek epic, which follows Odysseus on his perilous 10-year journey home to Ithaca after the Trojan War, is a foundational work in Western literature.
Adjective
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Each specimen was weighed and put in the same-sized containers filled with superworm larvae to determine the optimal ratio of larvae to specimen for thorough cleaning without damaging bones.
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And such a gap can be far more damaging than any technology shortfall.
Adjective
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Beijing has and been accused of serious human violations, including large-scale arbitrary detention of Uyghur and other Muslim minorities, in Xinjiang.
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Prosecutors said Anthony Edmond and Rafael Enriquez face the most serious charges, including conspiracy involving firearms trafficking, machineguns and drug trafficking.
Adjective
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In pharmacogenomics, understanding how genes affect drug efficacy helps doctors prescribe the right drug at the optimal dose while reducing adverse reactions.
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Johnson was undone by revelations of his conduct during Covid lockdowns and Truss by the adverse market reaction to her 2022 mini-Budget.
Cite this Entry
“Dangerous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dangerous. Accessed 3 Jul. 2026.
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