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a dangerous situation
an unsafe situation
a hazardous situation
a risky situation
a scary situation
a serious situation
dangerous precedent
troublesome precedent
perilous precedent
awful precedent
unhealthy precedent
horrible precedent
dangerous levels
unhealthy levels
risky levels
toxic levels
deadly levels
hazardous levels
a dangerous enemy
a powerful enemy
a deadly enemy
a potent enemy
a wicked enemy
a threatening enemy

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 This, in effect, frames even the movie’s unrelated, apolitical happenings as being at the mercy of this dangerous future, backed by Western powers. Siddhant Adlakha, Variety, 24 May 2025 The extent to which the tarp roller was unusually dangerous and the extent to which a veteran like Ruf should have been on the lookout would be key topics in pretrial discovery. Michael McCann, Sportico.com, 23 May 2025 Maddison is responsible for dropping deep and pinging passes into dangerous areas, while Kulusevski and Bergvall are excellent ball-carriers. Jay Harris, New York Times, 12 May 2025 With all the drama unfolding at the Harrigan's, you could be forgiven for losing track of Harry's dangerous rescue mission. EW.com, 11 May 2025 See All Example Sentences for dangerous
Recent Examples of Synonyms for dangerous
Adjective
  • Other parts of the southeastern US could see hazardous weather Friday afternoon and evening.
    Alaa Elassar, CNN Money, 30 May 2025
  • However, a small portion of them, known as potentially hazardous asteroids (PHAs), do require close monitoring.
    Soo Kim, MSNBC Newsweek, 22 May 2025
Adjective
  • Some of these harmful ideologies might be downstream of these larger root causes.
    ArsTechnica, ArsTechnica, 30 May 2025
  • The jury is still out on whether emulsifiers are harmful to the gut.
    Fran Kritz, Verywell Health, 30 May 2025
Adjective
  • However, bringing a drug to market is not only very expensive with a very lengthy payoff period, the business is also very risky.
    John C. Goodman, Forbes.com, 20 May 2025
  • However, with most flights now offering antibacterial wipes and long-haul routes undergoing more extensive cleaning, the routine is arguably not much riskier than applying makeup at home.
    Isabelle Rodney, CNN Money, 20 May 2025
Adjective
  • The multitrillion-dollar GOP tax bill could have detrimental impacts on decarbonization efforts in the U.S., according to energy experts.
    Julia Jacobo, ABC News, 23 May 2025
  • President Donald Trump's economic agenda is having a detrimental impact on workplace mental health, according to the American Psychological Association (APA).
    Hugh Cameron, MSNBC Newsweek, 22 May 2025
Adjective
  • The first season traces Ellie and Joel’s perilous journey, punctuated by attacks by the infected, the depredations of groups of raiders, and betrayals galore by would-be allies.
    Michael M. Rosen, The Washington Examiner, 30 May 2025
  • One brother, guided by moral duty, convinces the other to help the mother and join a perilous investigation to find the child.
    Naman Ramachandran, Variety, 26 May 2025
Adjective
  • Potent thunderstorms across the central and eastern U.S. this week could trigger flash floods, damaging winds and possible tornadoes as California prepares for its first heat wave of the season.
    Christopher Cann, USA Today, 29 May 2025
  • The plains in southeastern Colorado can expect damaging wind gusts up to 70 mph, 2-inch hail, heavy rain and a chance for tornadoes, according to a Hazardous Weather Outlook from the weather service's Pueblo office.
    Lauren Penington, Denver Post, 28 May 2025
Adjective
  • Created by a Benedictine monk with a serious eye for detail, this whimsical stop features 125 tiny, handcrafted replicas of famous historic landmarks, like St. Peter’s Basilica and the Leaning Tower of Pisa, all located on the grounds of Alabama’s only Benedictine monastery, St. Bernard Abbey.
    Symiah Dorsey, Southern Living, 24 May 2025
  • Seven restaurants were closed because of serious health violations: Chuys Restaurant, 4441 River Oaks Blvd., had a score of 27 and was closed because of unsafe temperatures in the restaurant’s cold storage units.
    Lillie Davidson, Fort Worth Star-Telegram, 24 May 2025
Adjective
  • Those impacted by this recall or others can report a complaint or adverse event by visiting Industry and Consumer Assistance.
    Fernando Cervantes Jr, USA Today, 24 May 2025
  • In 2023, for example, a federal judge ruled that mifepristone should be taken off the market by citing low-quality studies that reported adverse effects from mifepristone.
    Keren Landman, The Atlantic, 24 May 2025

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Cite this Entry

“Dangerous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/dangerous. Accessed 3 Jun. 2025.

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