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 But opponents of the bill argue that Texas roads remain dangerous and HB 19 would potentially let commercial operations off the hook. Dallas News, "Bill limiting liability for trucking companies passes Texas House," 30 Apr. 2021 In the meantime, Nava says, disease fighters must keep monitoring the jungle for dangerous diseases. Daniel Grossman, Science | AAAS, "Scientists scour the Amazon for pathogens that could spark the next pandemic," 29 Apr. 2021 The products were meant to give smokers a less dangerous alternative to combustible cigarettes. Jamie Ducharme, Time, "How the FDA's Menthol Cigarette Ban Fits Into a New Era of U.S. Tobacco Regulation," 29 Apr. 2021 Gordon was taken into custody by the FBI and booked on federal charges for assaulting, resisting or impeding an officer with a deadly or dangerous weapon. Jamie Landers, The Arizona Republic, "Man shot after attacking federal officers at Veteran's Administration Medical Center," 29 Apr. 2021 The cars now [are] extremely fast on the street -- very dangerous. John Kapetaneas, ABC News, "Street racing in California only getting more brazen, and more dangerous," 28 Apr. 2021 Lash lifts involve using chemical solution near your eyes, and experts agree that using an at-home kit is extremely dangerous. Katie Berohn, Good Housekeeping, "Doctors Are Warning That At-Home Lash Lift Kits Are Extremely Dangerous," 19 Apr. 2021 Because confronting an active shooter is extremely dangerous, experts say it should be done only as a last resort. Leanza Abucayan, CNN, "In the age of active shooters, a new mantra has emerged: 'Run. Hide. Fight.'," 18 Apr. 2021 National security agencies said the equipment being carried in the truck, a QSA Delta 800 gamma ray projector, is extremely dangerous and could prompt a fatal dose of radiation to those who come near it. Mica Soellner, Washington Examiner, "Truck full of radioactive material hijacked in Mexico," 13 Apr. 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

2 May 2021

Cite this Entry

“Dangerous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dangerous. Accessed 10 May. 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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