Definition of dangerous in English:


Line breaks: dan¦ger|ous
Pronunciation: /ˈdeɪn(d)ʒ(ə)rəs


  • 1Able or likely to cause harm or injury: a dangerous animal insecticides which are dangerous to the environment
    More example sentences
    • It was very dark and the terrain was dangerous so it was decided that it was too dangerous to carry on with the search.
    • The things he says are dangerous to certain members of our community.
    • It is very dangerous to look directly into the sun.
    menacing, threatening, treacherous; savage, wild, vicious, murderous, desperate
    rare minacious
  • 1.1Likely to cause problems or to have adverse consequences: it is dangerous to convict on his evidence
    More example sentences
    • It is at least as important to challenge the dangerous assumptions of their opponents.
    • Vouchers are stigmatised by their opponents as a dangerous idea of the radical right.
    • Both warn of the dangerous consequences of voting in favour of their opponents.
    hazardous, perilous, risky, high-risk, fraught with danger, unsafe, uncertain, unpredictable, precarious, insecure, exposed, vulnerable, touch-and-go, chancy, tricky, treacherous; breakneck, reckless, daredevil; Scottish unchancy
    informal warm, dicey, sticky, hairy
    British informal dodgy
    North American informal gnarly
  • 1.2(Of a drug) addictive or otherwise harmful or illegal: promoting a dangerous drug for profit
    More example sentences
    • But as education gets more attainable then people are starting to wake up to the fact that smoking is dangerous.
    • They understand that it is dangerous to smoke; it is dangerous to work in a place where there is smoke.
    • These are serious drugs, with potentially dangerous consequences, but the mood of the ads is upbeat and cheery.



More example sentences
  • York City have decided that if they are to dangle dangerously from the trapeze it is better to do it with a safety net in place.
  • It suddenly occurred to me I had paid to put my life in the hands of a man who used to earn a living driving very, very dangerously.
  • The rope was still swaying dangerously as she desperately struggled to regain control of it.


More example sentences
  • After the expiry of the tariff, continued detention depends on elements of dangerousness and risk associated with the objectives of the original sentence [for] murder.
  • When the presumption is not displaced, there is no need for the trial judge to address the issue of whether the vehicle is operable or immovable and/or the issue of dangerousness.
  • But there's no requirement that the law pull the wool over the public's eyes and hide the person's potential dangerousness.


Middle English (in the senses 'arrogant', 'fastidious', and 'difficult to please'): from Old French dangereus, from dangier (see danger).

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Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody