Definition of dangerousnext
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Synonym Chooser

How is the word dangerous distinct from other similar adjectives?

Some common synonyms of dangerous are hazardous, perilous, precarious, and risky. While all these words mean "bringing or involving the chance of loss or injury," dangerous applies to something that may cause harm or loss unless dealt with carefully.

soldiers on a dangerous mission

When could hazardous be used to replace dangerous?

The meanings of hazardous and dangerous largely overlap; however, hazardous implies great and continuous risk of harm or failure.

claims that smoking is hazardous to your health

When can perilous be used instead of dangerous?

The synonyms perilous and dangerous are sometimes interchangeable, but perilous strongly implies the immediacy of danger.

perilous mountain roads

When might precarious be a better fit than dangerous?

In some situations, the words precarious and dangerous are roughly equivalent. However, precarious suggests both insecurity and uncertainty.

earned a precarious living by gambling

When is it sensible to use risky instead of dangerous?

The words risky and dangerous can be used in similar contexts, but risky often applies to a known and accepted danger.

shied away from risky investments

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of dangerous The average American might hear that and think that's a big and dangerous deal. Major Garrett, CBS News, 8 Mar. 2026 But if that statistic means AI makes dangerous errors 2% of the time, there’s no evidence to support that assertion either. Robert Pearl, Twin Cities, 8 Mar. 2026 The Connecticut Nurses Association, AFT, the Office of the Victim Advocate, among other health organizations say the bill is critically needed in what has become a dangerous work environment. Livi Stanford, Hartford Courant, 8 Mar. 2026 While Trump officials say the current deportation surge is succeeding in rooting out dangerous criminals, immigrant advocates have decried the crackdown for separating families and sending people back to countries where their lives may be in danger. Ethan Varian, Mercury News, 8 Mar. 2026 See All Example Sentences for dangerous
Recent Examples of Synonyms for dangerous
Adjective
  • Scientists warn that this chemical fallout is far more hazardous and complex than standard urban pollution.
    Mrigakshi Dixit, Interesting Engineering, 11 Mar. 2026
  • Some hazardous storms ongoing Wednesday morning in the Midwest and Texas will get another boost of energy in the afternoon as the threat stretches out and tracks east.
    Holly Yan, CNN Money, 11 Mar. 2026
Adjective
  • When asked about Trump’s immigration policies — which have been controversial and are viewed by some Venezuelan residents as harmful to their community — Rodriguez first expressed support.
    Verónica Egui Brito, Miami Herald, 9 Mar. 2026
  • As these processes unfold, the nuclear pore is also blocking things that don’t belong, such as harmful enzymes or misfolded RNAs.
    Yasemin Saplakoglu, Quanta Magazine, 9 Mar. 2026
Adjective
  • Similar strikes to take out North Korea's leadership would be far riskier and less likely to succeed, said Hong Min, an analyst at South Korea's Institute for National Unification.
    Arkansas Online, Arkansas Online, 11 Mar. 2026
  • That sounds risky, but she was told by a doctor that the procedure doesn't require surgery and that the hole will close by itself.
    Randall Colburn, Entertainment Weekly, 10 Mar. 2026
Adjective
  • In an interview, Price framed the legislation as detrimental to public schools in Kansas City and across the state.
    Kacen Bayless, Kansas City Star, 10 Mar. 2026
  • Others feared that the possible ICE detention center would be detrimental to the region’s booming tourism industry, which employs thousands of immigrant workers.
    Ryan Gillespie, The Orlando Sentinel, 10 Mar. 2026
Adjective
  • As one of South Africa’s most daring new voices, Meekaeel Adam makes his directorial debut in this gripping story, set in 1846, of a Dutch-Afrikaans family and their British benefactor who make the perilous journey across the Kalahari Desert, watched over by two shapeshifting spirits.
    Thinus Ferreira, Variety, 6 Mar. 2026
  • Raffensperger’s departure comes as FanDuel and parent Flutter try to bounce back from a perilous period.
    Dan Bernstein, Sportico.com, 5 Mar. 2026
Adjective
  • The western half of the country spent the winter baking—nine states had their hottest winter ever and five their second-hottest—which worsened drought conditions and has raised the risks of damaging wildfires come spring and summer.
    Andrea Thompson, Scientific American, 13 Mar. 2026
  • The potential storms could bring more damaging winds and heavy rain, the weather service said, with a slight chance for tornadoes to develop.
    Caroline Zimmerman, Kansas City Star, 11 Mar. 2026
Adjective
  • The most serious mid-air collision involving the plane happened in 1966, when a B-52 bomber carrying nuclear bombs struck a tanker near Palomares, Spain.
    Kim Tong-Hyung, Los Angeles Times, 13 Mar. 2026
  • Minarik warned that, absent serious cost-cutting reforms, of which TrumpRx is but a small part, healthcare is only going to become more expensive.
    Jeremy Lott, The Washington Examiner, 13 Mar. 2026
Adjective
  • And, more importantly, consider locking one in to protect against any adverse rate changes still to come.
    Matt Richardson, CBS News, 6 Mar. 2026
  • And the way to make amends, to get better, to rid ourselves of those burdens of indiscretion is to suffer a little, to cleanse a lot, to reflect more than anything especially under the literal heat of adverse conditions.
    Brian Moylan, Vulture, 5 Mar. 2026

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Cite this Entry

“Dangerous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dangerous. Accessed 14 Mar. 2026.

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