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View synonyms for hazardous

hazardous

[ haz-er-duhs ]

adjective

  1. full of risk; perilous; risky:

    a hazardous journey.

    Synonyms: unsafe, dangerous

    Antonyms: secure, safe

  2. dependent on chance.

    Synonyms: speculative, risky, uncertain, chancy

    Antonyms: sure, reliable, certain



hazardous

/ ˈhæzədəs /

adjective

  1. involving great risk
  2. depending on chance
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • ˈhazardously, adverb
  • ˈhazardousness, noun
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Other Words From

  • hazard·ous·ly adverb
  • hazard·ous·ness noun
  • non·hazard·ous adjective
  • non·hazard·ous·ly adverb
  • non·hazard·ous·ness noun
  • ultra·hazard·ous adjective
  • un·hazard·ous adjective
  • un·hazard·ous·ly adverb
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Word History and Origins

Origin of hazardous1

First recorded in 1570–80; hazard + -ous
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Example Sentences

"Numerous flash floods, hazardous travel, power outages, and tree damage can be expected as the storm reaches max intensity," the National Weather Prediction Centre wrote in a post on X.

From BBC

Trump appointees changed part of the analysis so the chemical might look less hazardous.

“Numerous flash floods, hazardous travel, power outages, and tree damage can be expected as the storm reaches max intensity” on Wednesday.

It was a pick well rewarded with an early goal from Aston Villa's striker that turned a potentially hazardous task into an easy one.

From BBC

One in particular — Phos-Chek LC-95W — had “potentially alarming” concentrations of several metals, including chromium, cadmium and vanadium, he said, adding that the substance could be classified as hazardous waste under federal and California regulations.

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hazard lightshazardous waste