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 .

Related Words

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