Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “dangerous”

dangerous

adjective     /ˈdeɪn.dʒər.əs/ US  /-dʒɚ-/
A2 describes a person , animal , thing, or activity that could harm you: dangerous chemicals The men are armed and dangerous. I've never played ice hockey - it's far too dangerous. [+ to infinitive] It's dangerous to take more than the recommended dose .Dangers and threats
(Definition of dangerous adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of dangerous

Browse related topics

You are looking at an entry to do with Dangers and threats, but you might be interested in these topics from the Fear and danger topic area:

Definitions of “dangerous” in other dictionaries

Word of the Day

amicable

relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More