as in hazardous
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Recent Examples of Synonyms for ultrahazardous
Adjective
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Nearly as well-respected as DEET, picaridin is highly effective against the most hazardous mosquito breeds and, notably, won’t damage plastic or some synthetic fibers the way DEET does.—
BestReviews,
Mercury News,
3 June 2026 -
Strong longshore currents can sweep swimmers and surfers into rip currents, piers, jetties and other hazardous areas.—
NC Weather Bot,
Charlotte Observer,
2 June 2026
Adjective
-
Platforms will be required to introduce safety-by-design features, including protections against manipulative design that encourages compulsive use, and take action against underage accounts and harmful content.—
ABC News,
ABC News,
1 June 2026
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In addition to being harmful to humans, certain types of mushrooms can be poisonous to pets if consumed.—
Sacbee.com,
Sacbee.com,
1 June 2026
Adjective
-
However, be careful when choosing which plants to prune, as getting the timing wrong can be detrimental.—
Helena Madden,
Martha Stewart,
1 June 2026
-
In this instance, using the AI advice could be detrimental to their livelihood.—
Lance Eliot,
Forbes.com,
30 May 2026
Adjective
-
Brith had shut her eyes, finding that the sparks were still living on the inside of the lids, vivid in their dangerous dark.—
Maggie O’Farrell,
Literary Hub,
2 June 2026
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Carpenter says the disturbing encounters left her fearful for her safety and that of relatives living with her, as police label the suspect’s fixation irrational and increasingly dangerous.—
Emily St. Martin,
Los Angeles Times,
2 June 2026
Adjective
-
Nine crucial years of expansion and solidification of the pernicious institution went by, speeding the nation’s road toward a grinding war.—
Literary Hub,
Literary Hub,
3 June 2026
-
Microplastics are tiny fragments, that can be as small as 1/25,000th of an inch (1 micrometer) and are a pernicious part of the plastic pollution crisis.—
Laura Paddison,
CNN Money,
29 Apr. 2026
Adjective
-
Nuisance and injurious to health.—
Nikiya Carrero,
CBS News,
3 June 2026
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The agency would eventually decide whether to ban electrical shock devices that have been used for decades to manage self-injurious behavior in people with intellectual disabilities and autism.—
O. Rose Broderick,
STAT,
1 June 2026
Adjective
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DeVries also feels that seniors should not hesitate to file police reports to document adverse incidents.—
Karie Angell Luc,
Chicago Tribune,
5 June 2026
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The drug is designed to rapidly block platelets from clumping and restricting blood flow, lessening the adverse outcomes of a heart attack.—
Justin Zacks,
CNBC,
4 June 2026
Adjective
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Setting yourself up to overcome its deleterious effects on your money should be one of your top priorities, says Boneparth.—
Ryan Ermey,
CNBC,
1 Apr. 2026
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Alcohol, even marijuana, even light marijuana use, can have a deleterious effect on the development of a young brain.—
Stephanie Nolasco,
FOXNews.com,
29 Mar. 2026
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Cite this Entry
“Ultrahazardous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultrahazardous. Accessed 8 Jun. 2026.
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