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
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
Recent Examples of dangerous from the Web
Maile and Kevin Pillar led off with singles, bringing the Blue Jays’ most dangerous hitters —
Scientists say Earth is likely to reach more dangerous levels of warming sooner if the U.S. retreats from its pledge because America contributes so much to rising temperatures.
This move, combined with the administration’s efforts to dismantle domestic policies and regulations put in place right previous wrongs and keep the nation’s environment safe is setting the United States on a dangerous course.
Scientists say that Earth is likely to reach more dangerous levels of warming sooner if the U.S. retreats from its pledge because America contributes so much to rising temperatures.
The zoo’s dangerous-animal response team concluded the life of a 3-year-old boy who fell into the gorilla enclosure last May 28 was in danger and killed 17-year-old Harambe (huh-RAHM’-bay).
The world without U.S. efforts would have a far more difficult time avoiding a dangerous threshold: keeping the planet from warming more than 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels.
By noon, the clouds had cleared giving way to plenty of sunshine and rising heat, too, forcing many beachgoers into the rough waves of the Gulf of Mexico, despite red flags warning swimmers of dangerous riptides.
Lead paint was banned by most countries, but some homes built before the ban still have dangerous lead paint.
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.
Synonym Discussion of dangerous
DANGEROUS Defined for English Language Learners
Definition of dangerous for English Language Learners
: involving possible injury, harm, or death : characterized by danger
: able or likely to cause injury, pain, harm, etc.
DANGEROUS Defined for Kids
Definition of dangerous for Students
1 : involving possible harm or death : full of danger dangerous work
2 : able or likely to injure A chain saw is a dangerous tool.
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
Additional Notes on dangerous
The activity that an offender is likely to engage in need not involve violence in order for the offender to be deemed dangerous.
Seen and Heard
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