dangerous

[deyn-jer-uhs, deynj-ruhs]

adjective

1. full of danger danger or risk; causing danger; danger; perilous; risky; hazardous; unsafe.

2. able or likely to cause physical injury.

   a dangerous criminal.

dangerous

/ ˈdeɪndʒərəs /

adjective

1. causing danger; perilous

Other Word Forms

• dangerously adverb
• dangerousness noun
• nondangerous adjective
• nondangerously adverb
• nondangerousness noun
• quasi-dangerous adjective
• quasi-dangerously adverb
• semidangerous adjective
• semidangerously adverb
• semidangerousness noun
• undangerous adjective
• undangerously adverb

Word History and Origins

Origin of dangerous¹

First recorded in 1175–1225; Middle English da(u)ngerous “domineering, fraught with danger,” from Old French dangereus “threatening, difficult,” equivalent to dangier ( danger ) + -eus -ous

Idioms and Phrases

see little knowledge is a dangerous thing; live dangerously.

Example Sentences

The Finnish government's crackdown on immigration has led to a sharp rise in deportations, raising fears among undocumented migrants who could face dangerous situations in their home countries.

Read more on Barron's

“There’s a lot that we don’t do because either it’s too dangerous, we don’t have the equipment for it or we’re not trained for it,” Gibbs said.

Read more on Los Angeles Times

For more policymakers, that remains the more dangerous side of the Fed’s dual mandate of price stability and full employment.

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For one, “it is incredibly dangerous for your body,” Ms. Seidel says.

Read more on The Wall Street Journal

And Powell’s argument was based on the conventional wisdom on Wall Street — a conventional wisdom that is wrong, and therefore extremely dangerous.

Read more on MarketWatch

Related Words

• alarming 
• bad 
• critical 
• deadly 
• fatal 
• nasty 
• perilous 
• precarious 
• risky 
• serious 
• terrible 
• threatening 
• treacherous 
• ugly 
• unhealthy 
• unsafe 
• unstable