dangerous

[ deyn-jer-uh s, deynj-ruh s ]

/ ˈdeɪn dʒər əs, ˈdeɪndʒ rəs /

SEE SYNONYMS FOR dangerous ON THESAURUS.COM

adjective

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

able or likely to cause physical injury: a dangerous criminal.

Words nearby dangerous

danger, danger angle, danger cave, danger man, danger money, dangerous, dangerous offender, dangle, dangleberry, dangling participle, dani

Origin of dangerous

1175–1225; Middle English da(u)ngerous domineering, fraught with danger < Old French dangereus threatening, difficult, equivalent to dangier (see danger) + -eus -ous

OTHER WORDS FROM dangerous

dan·ger·ous·ly, adverbdan·ger·ous·ness, nounnon·dan·ger·ous, adjectivenon·dan·ger·ous·ly, adverb

non·dan·ger·ous·ness, nounqua·si-dan·ger·ous, adjectivequa·si-dan·ger·ous·ly, adverbsem·i·dan·ger·ous, adjectivesem·i·dan·ger·ous·ly, adverbsem·i·dan·ger·ous·ness, nounun·dan·ger·ous, adjectiveun·dan·ger·ous·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for dangerous

An additonal 30,000 made it to Europe by other routes including commercial flights and dangerous overland passages.
Ghost Ships of the Mediterranean|Barbie Latza Nadeau|January 6, 2015|DAILY BEAST
The most dangerous attacks are those that undermine your perceived strength.
Will Chris Christie Regret His Cowboy Hug?|Matt Lewis|January 5, 2015|DAILY BEAST
There were also crashes not due to either mechanical or human error but to a lack of warning of dangerous conditions.
Flight 8501 Poses Question: Are Modern Jets Too Automated to Fly?|Clive Irving|January 4, 2015|DAILY BEAST
The Wolf of Wall Street is a dangerous, incendiary work of art.
Coffee Talk with Ethan Hawke: On ‘Boyhood,’ Jennifer Lawrence, and Bill Clinton’s Urinal Exchange|Marlow Stern|December 27, 2014|DAILY BEAST

“I know that being a cop is dangerous but I must do it,” a friend remembered him saying, as reported in The New York Times.
In The Shadow of Murdered Cops|Michael Daly|December 26, 2014|DAILY BEAST
Now all these dangerous weapons went over into a poor man's garden, where his son and some other boys were weeding it.
Forgotten Tales of Long Ago|E. V. Lucas
And there are justifiable strandings in fogs, on uncharted seas, on dangerous shores, through treacherous tides.
The Mirror of the Sea|Joseph Conrad
They could not believe that trails were between them and their dangerous enemy!
The Bush Boys|Captain Mayne Reid
The young lieutenant well knew the dangerous position in which the ship, now under his command, was placed.
Won from the Waves|W.H.G. Kingston
I don't know that I'd say that, sir, but it's dangerous enough.
Dave Darrin After The Mine Layers|H. Irving Hancock

British Dictionary definitions for dangerous

dangerous

/ (ˈdeɪndʒərəs) /

adjective

causing danger; perilous

Derived forms of dangerous

dangerously, adverbdangerousness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012