dangerous

[ deyn-jer-uhs, deynj-ruhs ]
/ ˈdeɪn dʒər əs, ˈdeɪndʒ rəs /
See synonyms for: dangerous / dangerously 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.

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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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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

Idioms and Phrases with dangerous

dangerous

see little knowledge is a dangerous thing; live dangerously.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.