as in dangerous
involving potential loss or injury
a hazardous journey across the arctic ice
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Example Sentences
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Recent Examples of hazardous
Ensure child and pet safety: Take every precaution to never leave young children and pets alone in vehicles, especially in extreme heat when car interiors can quickly become hazardous.
—
Ca Weather Bot, Sacbee.com, 8 June 2025
The Fire and Rescue High School Academy is designed to provide students with both the academic foundation and practical experience required for state certifications in fire and hazardous materials response, the release said.
—Post-Tribune, Chicago Tribune, 8 June 2025
Button cell or coin batteries: Used in watches, hearing aids, and small electronics, these often contain silver or mercury and must be treated as hazardous waste.
Lead-acid batteries: These are what car batteries (and some lawn equipment batteries) are made of and contain lead and sulfuric acid.
—Mary Cornetta, Better Homes & Gardens, 4 June 2025
Real Simple notes that anyone buying alcohol, tobacco, prepaid gift cards, and certain hazardous items will still need to use the regular checkout lane, which seems fair enough.
—Melissa Locker, Southern Living, 3 June 2025
See All Example Sentences for hazardous
Ca Weather Bot, Sacbee.com, 8 June 2025
The Fire and Rescue High School Academy is designed to provide students with both the academic foundation and practical experience required for state certifications in fire and hazardous materials response, the release said.
—Post-Tribune, Chicago Tribune, 8 June 2025
Button cell or coin batteries: Used in watches, hearing aids, and small electronics, these often contain silver or mercury and must be treated as hazardous waste.
Lead-acid batteries: These are what car batteries (and some lawn equipment batteries) are made of and contain lead and sulfuric acid.
—Mary Cornetta, Better Homes & Gardens, 4 June 2025
Real Simple notes that anyone buying alcohol, tobacco, prepaid gift cards, and certain hazardous items will still need to use the regular checkout lane, which seems fair enough.
—Melissa Locker, Southern Living, 3 June 2025
See All Example Sentences for hazardous
Recent Examples of Synonyms for hazardous
Adjective
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At times, the Algerian even operated as a wide forward as O’Neil grappled with a forward injury crisis and identified Ait-Nouri as his most dangerous attacking threat.—
Steve Madeley,
New York Times,
6 June 2025
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Furthermore, is a reliance on new safety and driver assistance features potentially dangerous? Ford recall extends to over one million vehicles due to rearview camera issue Why are over a million Ford models included in NHTSA's recent recall notices?—
Charles Singh,
USA Today,
5 June 2025
Adjective
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Actually using tariffs to finance a big chunk of the federal government would be a painful and perilous undertaking, budget wonks say.—
Arkansas Online,
Arkansas Online,
8 June 2025
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Yet the prevailing winds are those of geopolitical rivalry and division, turning our greatest global commons into an increasingly contested and perilous domain.—
Sturla Henriksen,
Time,
5 June 2025
Adjective
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Iranian Supreme Leader Ali Khamenei and military officials must know that attacking U.S. targets would be very risky and would lead to a significant response that would likely be even more damaging than Israel’s latest attacks – including putting a potential deal over its nuclear program at risk.—
Javed Ali,
The Conversation,
13 June 2025
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In a way, staying close to the game is the safest route, even if the story itself is more risky.—
James Hibberd,
HollywoodReporter,
13 June 2025
Adjective
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Nobody else can do what Isak does, but Newcastle lack serious backup at centre-forward.—
Chris Waugh,
New York Times,
6 June 2025
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There were no serious injuries reported or arrests made among the crowd of about 500 teenagers.—
David Matthews,
New York Daily News,
6 June 2025
Adjective
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He's been charged with reckless driving, disobeying the signal of an officer, failure to maintain lane, passing on the right, improper turn, passing at an unsafe distance, engaging police in a pursuit, interfering with an officer and reckless endangerment in the first degree.—
Michael Nied,
People.com,
6 June 2025
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The driver accelerated away, making unsafe lane changes and weaving in and out of traffic, the trooper's report said.—
Madison Lambert,
NBC news,
6 June 2025
Cite this Entry
“Hazardous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hazardous. Accessed 18 Jun. 2025.
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