dan·ger·ous | \ ˈdān-jə-rəs ; 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

Any of the very dangerous stunts the team pulled off. Rhonda Richford, The Hollywood Reporter, "The 'Mission Impossible — Fallout' Cast on How Paris Inspired the Latest Action-Packed Installment," 13 July 2018 The project's goal was to educate the dog community about dog behavior to help prevent dangerous situations at the park. Quoron Walker, Courant Community, "Local Girl Scout Troop Says Goodbye," 2 July 2018 Watching the news means watching politicians who don’t live here talk about how dangerous your town is. Henry Gass, The Christian Science Monitor, "In border town, World Cup watchers balance team pride, anxiety about US," 29 June 2018 The veiled woman is something that can be dangerous, something that can express her innermost complicated desires. Sonia Saraiya, HWD, "A Look Beneath the Veil of Alias Grace’s Showstopping Hypnotism," 25 June 2018 Moving on the ground is more dangerous than moving in trees, so house wrens have higher chances of mortality. National Geographic, "Birds That Leave Nest Too Late Can Endanger Their Families," 25 June 2018 The streets may have been dangerous, but that encouraged a sociable and intimate scene. Stephen Metcalf, The Atlantic, "Jean-Michel Basquiat Is Still an Enigma," 24 June 2018 For more on how to build a basic Alka-Rocket, see here or watch the handy video below: Safety (super important!!!!): Rockets can be dangerous—even small ones powered by effervescent tablets. Scientific American, "The Build-Your-Own Alka-Rocket Contest," 22 June 2018 The bacteria from this can be dangerous for swimmers. Louisville Courier Journal, The Courier-Journal, "Can you get in the water at Forecastle Festival? It really depends," 13 July 2018

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

9 Sep 2018

Look-up Popularity

Time Traveler for dangerous

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

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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 , 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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Comments on dangerous

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