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

Derived Forms

• ˈdangerousness, noun
• ˈdangerously, adverb

Other Words From

• danger·ous·ly adverb
• danger·ous·ness noun
• non·danger·ous adjective
• non·danger·ous·ly adverb
• non·danger·ous·ness noun
• quasi-danger·ous adjective
• quasi-danger·ous·ly adverb
• semi·danger·ous adjective
• semi·danger·ous·ly adverb
• semi·danger·ous·ness noun
• un·danger·ous adjective
• un·danger·ous·ly 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 force said the dog had since been put down under the Dangerous Dogs Act of 1991.

From BBC

Although Marie Antoinette was found to be blameless, her reputation is thought to have been tarnished by the affair and she was unpopular among the French people, who accused her of being wasteful and a dangerous influence on the king.

From BBC

"In my view, this kind of talk from the Minister in the Presidency is disgraceful and dangerous hate speech," one user said.

From BBC

That flash point foretells an America becoming more polarized the hotter things get, more sharply divided between its rural and urban communities and more hateful and more dangerous.

From Salon

It’s a promotion of facts over dangerous propaganda.

From Salon

Related Words

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