hazardous
adjective
haz·ard·ous
ˈha-zər-dəs 
1
: involving or exposing one to risk (as of loss or harm)
a hazardous occupation
disposing of hazardous waste
2
: depending on the effect of unpredictable and unanalyzable forces in determining events : depending on hazard (see hazard entry 1 sense 2a) or chance
hazardous outcomes
hazardously
adverb
hazardousness
noun
Examples of hazardous in a Sentence
It was a hazardous voyage.
These are hazardous chemicals that can cause death if inhaled.
Recent Examples on the Web
Specialized drivers transporting hazardous materials or oversized loads can earn $75,750–$118,600 per year, while owner-operators may make $85,000–$100,000, excluding maintenance expenses.
—
Jack Kelly, Forbes.com, 9 Apr. 2025
Authorities raised the alert level, warning of the potential for further hazardous volcanic activity.
—Gordon G. Chang, MSNBC Newsweek, 8 Apr. 2025
The plane was removed from the water by 10 a.m., per ABC 9.
Crews are working to contain a hazardous materials incident related to the plane incident.
—Charna Flam, People.com, 8 Apr. 2025
Longshore currents can sweep swimmers and surfers into rip currents, piers, jetties, and other hazardous areas.
—Nc Weather Bot, Charlotte Observer, 6 Apr. 2025
See All Example Sentences for hazardous
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Jack Kelly, Forbes.com, 9 Apr. 2025
Authorities raised the alert level, warning of the potential for further hazardous volcanic activity.
—Gordon G. Chang, MSNBC Newsweek, 8 Apr. 2025
The plane was removed from the water by 10 a.m., per ABC 9.
Crews are working to contain a hazardous materials incident related to the plane incident.
—Charna Flam, People.com, 8 Apr. 2025
Longshore currents can sweep swimmers and surfers into rip currents, piers, jetties, and other hazardous areas.
—Nc Weather Bot, Charlotte Observer, 6 Apr. 2025
See All Example Sentences for hazardous
Cite this Entry
“Hazardous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hazardous. Accessed 16 Apr. 2025.
Copy CitationKids Definition
hazardous
adjective
haz·ard·ous
ˈhaz-ərd-əs
hazardously
adverb
hazardousness
noun
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