dan·​ger·​ous | \ ˈdān-jə-rəs How to pronounce dangerous (audio) ; ˈdān-jərs, -zhrəs \

Definition of dangerous

1 : involving possible injury, pain, harm, or loss : characterized by danger a dangerous job
2 : able or likely to inflict injury or harm a dangerous man

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Other Words from dangerous

dangerously adverb
dangerousness noun

Choose the Right Synonym for dangerous

dangerous, hazardous, precarious, perilous, risky mean bringing or involving the chance of loss or injury. dangerous applies to something that may cause harm or loss unless dealt with carefully. soldiers on a dangerous mission hazardous implies great and continuous risk of harm or failure. claims that smoking is hazardous to your health precarious suggests both insecurity and uncertainty. earned a precarious living by gambling perilous strongly implies the immediacy of danger. perilous mountain roads risky often applies to a known and accepted danger. shied away from risky investments

Examples of dangerous in a Sentence

She got into a car accident while driving through a dangerous intersection. He often drives at dangerous speeds. The city can be a dangerous place to live. The storms may cause dangerous flooding. He is wanted for assault with a dangerous weapon. the most dangerous of drugs
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Recent Examples on the Web That can expose you to dangerous levels of carbon monoxide. Taylor Pettaway, Liz Hardaway, San Antonio Express-News, "'Imminent threat:' San Antonio braces for rain, sleet, snow - and extreme cold," 12 Feb. 2021 During the hearing, he was found to be dangerous and released on conditions of remaining drug and alcohol free, no driving, no firearms, and no new crimes, the statement said. Andrew Stanton, BostonGlobe.com, "Maine man arrested for 6th OUI offense," 10 Feb. 2021 The Minneapolis Fire Department rescued a woman trapped on ice on the Mississippi River on Saturday, a reminder that regardless of its appearance, venturing onto ice is always dangerous — especially on a river. Katy Read, Star Tribune, "Minneapolis Fire Department rescues woman trapped on Mississippi River ice after following dog," 30 Jan. 2021 Yet suddenly, Wall Street is panicking and saying that what WSB has done is dangerous and that now, new rules need to be instituted. Whizy Kim, refinery29.com, "Why Everyone Is Talking About GameStop Stocks — Or Is It Stonks?," 28 Jan. 2021 Anyone with an eye toward preventing legal liability knows: Text is dangerous. New York Times, "How to Keep Internet Trolls Out of Remote Workplaces," 24 Jan. 2021 While direct radiation exposure, especially ionizing radiation, can be dangerous, microwaves are very safe. Popular Science, "The best microwaves: This way for buttery popcorn and tempting leftovers," 22 Jan. 2021 Of course, putting politicians (or their mittens) on pedestals can be dangerous. oregonlive, "The inside story of Bernie Sanders’ ‘grumpy chic’ inauguration mittens," 20 Jan. 2021 Of course, putting politicians (or their mittens) on pedestals can be dangerous. Laura Zornosa, Los Angeles Times, "The inside story of Bernie Sanders’ ‘grumpy chic’ inauguration mittens," 20 Jan. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dangerous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of dangerous

15th century, in the meaning defined at sense 1

History and Etymology for dangerous

see danger entry 1

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Time Traveler for dangerous

Time Traveler

The first known use of dangerous was in the 15th century

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Statistics for dangerous

Last Updated

19 Feb 2021

Cite this Entry

“Dangerous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dangerous. Accessed 3 Mar. 2021.

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More Definitions for dangerous



English Language Learners Definition of dangerous

: involving possible injury, harm, or death : characterized by danger
: able or likely to cause injury, pain, harm, etc.


dan·​ger·​ous | \ ˈdān-jə-rəs How to pronounce dangerous (audio) , ˈdānj-rəs \

Kids Definition of dangerous

1 : involving possible harm or death : full of danger dangerous work
2 : able or likely to injure A chain saw is a dangerous tool.

Other Words from dangerous

dangerously adverb



Legal Definition of dangerous

1 : creating a risk of bodily injury a dangerous condition of a public building
2 : able or likely to inflict especially serious bodily injury a dangerous criminal with no regard for human life a dangerous animal also : deadly
3 : likely to engage in repeated criminal activity a dangerous offender

Note: The activity that an offender is likely to engage in need not involve violence in order for the offender to be deemed dangerous.

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