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dangerous Definition

dan·ger·ous (-əs)

adjective

full of danger; likely to cause injury, pain, etc.; unsafe; perilous

Etymology: ME < OFr dangereus

dangerous Related Forms

dan′·ger·ously adverb dan′·ger·ous·ness noun

dangerous Synonyms

dangerous

modif.

  1. Not safe

    perilous, unsafe, hazardous, risky, precarious, treacherous, unprotected, unshielded, unsheltered, critical, serious, vulnerable, exposed, involving risk, full of risk, threatening, alarming, portentous, causing danger, insecure, ticklish, delicate, speculative, unstable, touchy, bad, fraught with danger, thorny, jeopardous, breakneck, chancy, uncertain, touch-and-go, shaky, slippery, unsteady, rickety, rocky, hairy*, unhealthy*, hot*, dicey*; see also endangered, uncertain 2, unsafe.

    Antonyms safe, sure, secure.

  2. Involving an active threat

    menacing, threatening, serious, critical, impending, ominous, ugly, nasty, imminent, malignant, formidable, terrible, impregnable, armed, fatal, mortal, deadly, explosive, out of the frying pan and into the fire*, on a collision course*; see also ominous.

    Antonyms helpful*, innocent*, beneficial.

dangerous Usage Examples

Preposition: on

counter-attack: Cardiff then had to push forward but we defended well and still looked dangerous on the counter-attack.

Modifies a noun

  • driving: About 25 out of 700 a year, plus 300 deaths by dangerous driving.
  • occurrence: Keeping records An employer must keep a record of any reportable injury, disease or dangerous occurrence.
  • substance: A list of commonly used dangerous substances can be supplied to you by the HSE.
  • precedent: But this is a dangerous precedent and Patricia Hewitt should back off, " he said.
  • pathogen: This property makes RNA viruses among the most dangerous pathogens.
  • situation: Avoid getting into dangerous situations in the first place!

Modifying Another Word

  • potentially: Yes, I know it is a potentially dangerous thing to do.
  • inherently: In 1797 Richard began experimenting with high pressure steam engines by using models to test the practicality of using this inherently dangerous power source.
  • downright: At a time when links are being made between poverty, disempowerment and terrorism this erosion of the democratic contract is downright dangerous.
  • extremely: An extremely dangerous situation is being created in the world.
  • too: Roads are much too dangerous for children to be allowed to use them unaccompanied.

Infinitive complement

  • bathe: Red - Dangerous to bathe or swim and you should not go into the water.
  • rely: At the same time, it would be dangerous to rely on a combination of U.S. air power and indigenous opposition forces alone.

Used with adjective complement

  • prove: Not only was the heating inadequate, but on occasion it proved dangerous.
  • look: Matthew Hayden played a great knock and is looking dangerous.
  • consider: In order to be considered dangerous, a building must actually pose a threat of causing harm to a person.
  • become: Jill's behavior is becoming even more dangerous for Pam.
  • seem: What does seem dangerous is to assume a solution will apply to everyone.

Preposition: from

set-pieces: But if we are honest we have taken two points from nine ' ' He'll also be very dangerous from set-pieces.