Synonym Chooser

How is the word hazardous distinct from other similar adjectives?

Some common synonyms of hazardous are dangerous, perilous, precarious, and risky. While all these words mean "bringing or involving the chance of loss or injury," hazardous implies great and continuous risk of harm or failure.

claims that smoking is hazardous to your health

When is dangerous a more appropriate choice than hazardous?

In some situations, the words dangerous and hazardous are roughly equivalent. However, dangerous applies to something that may cause harm or loss unless dealt with carefully.

soldiers on a dangerous mission

When could perilous be used to replace hazardous?

Although the words perilous and hazardous have much in common, perilous strongly implies the immediacy of danger.

perilous mountain roads

In what contexts can precarious take the place of hazardous?

While the synonyms precarious and hazardous are close in meaning, precarious suggests both insecurity and uncertainty.

earned a precarious living by gambling

Where would risky be a reasonable alternative to hazardous?

While in some cases nearly identical to hazardous, 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 hazardous Continuing to gather clues and speculate on the nature of the odd signals, Spock and Una uncover more signs of hazardous alien life and mysterious Federation relics. Jeff Spry, Space.com, 3 Apr. 2025 This may result in slick and hazardous driving conditions. Ca Weather Bot, Sacbee.com, 1 Apr. 2025 However, a small portion of them, known as potentially hazardous asteroids (PHAs), do require closer observation. Josh Hammer, MSNBC Newsweek, 1 Apr. 2025 More snow is on the way and will create hazardous travel conditions, forecasters said. Lauren Penington, Denver Post, 1 Apr. 2025 See All Example Sentences for hazardous
Recent Examples of Synonyms for hazardous
Adjective
  • Many of the surf zone fatalities occur when distant hurricanes send swells to shore that create dangerous conditions at the coast, such as strong surf and rip currents, the hurricane center stated.
    Dinah Voyles Pulver, USA Today, 6 Apr. 2025
  • As the medical profession came to consider cocaine and morphine as equally dangerous, coca became associated with opium, and the public was led to believe that the ruinous effects of habitual opium use would inevitably befall those who regularly chewed coca leaves.
    Wade Davis, Rolling Stone, 6 Apr. 2025
Adjective
  • Correspondent Jo Ling Kent looks back on a perilous week for companies and consumers trying to plan ahead.
    David Morgan, CBS News, 10 Apr. 2025
  • Their perilous contact with foreign cultures reveals inner sins and weaknesses.
    Armond White, National Review, 9 Apr. 2025
Adjective
  • According to Lowe, we’re all regularly exposed to microplastics daily—and other products are likely far riskier than a stick of gum.
    Julia Ries, Health, 1 Apr. 2025
  • Disclosing the full identity of someone fleeing persecution is inherently risky.
    Jonathan Blitzer, New Yorker, 1 Apr. 2025
Adjective
  • The most serious charge carries up to 10 years in prison, while the others have a five-year maximum term.
    Jason Meisner, Chicago Tribune, 6 Apr. 2025
  • Age restrictions could impact the positives that social media brings, and still fall short of solving its more serious issues.
    Peter Suciu, Forbes.com, 6 Apr. 2025
Adjective
  • Supporters of Galloway’s bill argued that the city’s enforcement of its ban has been lax, forcing residents and business owners near encampments to confront people experiencing mental illness, using drugs or making customers feel unsafe.
    Sarah Cutler, Idaho Statesman, 8 Apr. 2025
  • For home-renovation questions, Google’s AI may give advice that’s unsafe or simply inaccurate, such as recommending specific products that don’t exist, McBride said.
    Bloomberg, Mercury News, 7 Apr. 2025

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Cite this Entry

“Hazardous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hazardous. Accessed 16 Apr. 2025.

More from Merriam-Webster on hazardous

Last Updated: - Updated example sentences
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