Dictionary.com

dangerous

[ deyn-jer-uhs, deynj-ruhs ]
/ ˈdeɪn dʒər əs, ˈdeɪndʒ rəs /
Save This Word!
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.
QUIZ
SPRINT TO THE FINISH WITH THIS OLYMPICS QUIZ!
Compete in our Olympics quiz to see if you can take home the gold medal in Olympics knowledge.
Question 1 of 10
Where was the Olympics first held?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

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

How to use dangerous in a sentence

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

Other 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.
FEEDBACK