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

Hurricane Dorian and 2017's Hurricane Maria in Puerto Rico left a path of widespread devastation, making aid distribution difficult and dangerous. Wired, "The First Hurricane Relief Drone Was Ready to Fly—Then Dorian Hit," 17 Sep. 2019 Humberto is also causing rough surf and dangerous rip currents along the U.S. Atlantic coast from central Florida northward to North Carolina. Leigh Morgan, al, "Hurricane Humberto 2019: Bermuda now in the path as Humberto gets stronger," 16 Sep. 2019 Described as armed and dangerous, the couple had been free since August 26 after allegedly overpowering two security guards in a private transport vehicle during a stop in Utah while being driven from New York to Arizona to face charges. Jeff Truesdell, PEOPLE.com, "Fugitive Arizona Couple Accused of Killing Veteran and Burning His Home Captured After Escape," 12 Sep. 2019 Work in the unregulated mines is back-breaking and dangerous. Xing Liu, Science Magazine, "At 5100 meters elevation, a Peruvian gold mining town is the world’s highest settlement—and a good place to study how life at extremely low oxygen levels ravages the body.," 12 Sep. 2019 If a dog is deemed dangerous, the owner must surrender the animal or abide by strict rules to keep it. Lisa Maria Garza, orlandosentinel.com, "Marley, dog greeter at Ski World Orlando, could be dubbed ‘dangerous’ by Orange County after biting woman’s face," 11 Sep. 2019 Although this is an important and dangerous type of prejudice, such crime is not the only form that xenophobia may take. Steven Gordon, Quartz Africa, "What research tells us is driving xenophobic attacks on African migrants in South Africa," 9 Sep. 2019 The dangerous but rare Eastern equine encephalitis virus is flaring up in Michigan, state health officials say, and has been confirmed in two people in Berrien and Kalamazoo counties and is suspected in five more people. Kristen Jordan Shamus, Detroit Free Press, "7 cases of dangerous encephalitis investigated in Michigan: What you need to know," 31 Aug. 2019 The larger immigration crackdown has worried advocates who say that these types of enforcement actions don't stem the flows of migrants, but instead push them into more remote and dangerous routes. Rafael Carranza, azcentral, "Migrant shelters in Mexico clash with National Guard over immigration enforcement," 30 Aug. 2019

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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Statistics for dangerous

Last Updated

7 Oct 2019

Look-up Popularity

Time Traveler for dangerous

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

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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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