ultrahazardous

adjective

Definition of ultrahazardousnext
as in hazardous

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Example Sentences

Recent Examples of Synonyms for ultrahazardous
  1. hazardous
  2. harmful
  3. detrimental
  4. dangerous
  5. pernicious
  6. injurious
  7. adverse
  8. deleterious
Adjective
  • The park said more flash floods and hazardous conditions were possible over the next two days, amid potential thunderstorms and downpours.
    — Eve Chen, USA Today, 30 Aug. 2026
  • The National Weather Service issued a hazardous weather outlook for the entire Thumb region.
    — Nour Rahal, Freep.com, 30 Aug. 2026
Definition of hazardous
Adjective
  • California was among dozens of states that sued Meta in 2023, alleging in a lawsuit that the social media giant intentionally designed harmful and addictive features to hook children while misleading the public about the dangers.
    — Sonja Sharp, Los Angeles Times, 26 Aug. 2026
  • The report said the company was strengthening its research infrastructure, increasing monitoring and improving safeguards designed to prevent harmful or unintended behavior.
    — Reuters, NBC news, 26 Aug. 2026
Definition of harmful
Adjective
  • Being full of yourself isn’t detrimental but necessary for survival.
    — Angelica Jade Bastién, Vulture, 27 Aug. 2026
  • The settlement also requires limits on features that some experts believe are detrimental to teenagers’ self-esteem and self-image.
    — Kaitlyn Tiffany, The Atlantic, 26 Aug. 2026
Definition of detrimental
Adjective
  • Heaping credit onto Espada is dangerous, but so is blaming him for every game that goes awry.
    — Chandler Rome, New York Times, 31 Aug. 2026
  • That’s a dangerous prospect for any country, but especially for Singapore, crammed into a space smaller than New York City.
    — Angelica Ang, Fortune, 30 Aug. 2026
Definition of dangerous
Adjective
  • The report highlighted the gene-editing tool CRISPR, in particular, for its revolutionary positive and simultaneously pernicious potential.
    — Elizabeth Sherwood-Randall, Foreign Affairs, 18 Aug. 2026
  • But herein also lie some of the issues that de-normalizing alcohol consumption brings to light, including its overlap with other, equally pernicious public health crises.
    — Tim Brinkhof, Time, 23 July 2026
Definition of pernicious
Adjective
  • White House advisers have argued that his vision would be politically injurious ahead of the midterms.
    — Dhruv Khullar, New Yorker, 25 Aug. 2026
  • Strengthening balance is critical to help older adults prevent injurious falls.
    — Deborah Vankin, Los Angeles Times, 18 Aug. 2026
Definition of injurious
Adjective
  • Ustel said the ferry faced adverse weather conditions and began taking in water just 15 minutes after departure.
    — ABC News, ABC News, 30 Aug. 2026
  • The report identified adverse effects on dozens of historic properties, including the Lincoln Memorial, Washington Monument and other landmarks.
    — Amelia Lucas, CNBC, 29 Aug. 2026
Definition of adverse
Adjective
  • During this time, bogs, marshes, and other wetlands, historically seen as disease-ridden and deleterious to human health, were reevaluated by scientists and conservationists as valuable wildlife habitats.
    — Encyclopedia Britannica, Encyclopedia Britannica, 24 July 2026
  • The effects of this are going to be really deleterious to this whole thing.
    — Jasmin Malik Chua, Footwear News, 23 July 2026
Definition of deleterious
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.

Browse Nearby Words

ultrafine
ultrahazardous
ultraheavy
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Cite this Entry

“Ultrahazardous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultrahazardous. Accessed 2 Sep. 2026.

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Last Updated: - Updated example sentences
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