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
  • Ultimately, the greatest impacts will be determined by the storm's track, but periods of heavy rain and wind, along coastal flooding, beach erosion, and hazardous surf are a concern, especially for the Carolinas and mid-Atlantic.
    — ABC News, ABC News, 17 Oct. 2026
  • Preliminary tests indicate the substance is not hazardous; the letters prompted evacuations and police responses, with no injuries reported in the California incidents described.
    — Los Angeles Times, Los Angeles Times, 17 Oct. 2026
Definition of hazardous
Adjective
  • Local government and outside groups have long strived to ban the popular tourist attraction that critics argue is harmful to horses’ well-being.
    — Claire Carter, The Washington Examiner, 14 Oct. 2026
  • Waters are becoming cloudier overall, while harmful algal blooms — measured through chlorophyll a levels — are trending in the wrong direction, the report found.
    — Adam Thompson, CBS News, 14 Oct. 2026
Definition of harmful
Adjective
  • Hyperscalers opine on how detrimental electrical outages are to their business.
    — Drew Robb, Time, 15 Oct. 2026
  • Kennon, who is currently being held in Falkenburg Road Jail, was released from the program due to conduct detrimental to the team, the school said.
    — Ryan Morik OutKick, FOXNews.com, 14 Oct. 2026
Definition of detrimental
Adjective
  • Swimmers should remain out of the water due to dangerous surf conditions.
    — NC Weather Bot, Charlotte Observer, 18 Oct. 2026
  • Fresh to strong winds will produce dangerous boating conditions, high surf, life-threatening rip currents, and moderate beach erosion through at least the first half of the coming week, forecasters said.
    — Felix Rodriguez, The Orlando Sentinel, 18 Oct. 2026
Definition of dangerous
Adjective
  • Courtesy of WorldSkills Is one of the world’s most pernicious social stigmas finally lifting?
    — the Monitor's Editorial Board, Christian Science Monitor, 8 Oct. 2026
  • Obscured Releasing has acquired North American distribution rights to The Drug in Our Pocket, a documentary by Anne Sundberg about the pernicious effects on young people of constant smartphone use.
    — Matthew Carey, Deadline, 2 Oct. 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
  • In fact, the National Trust for Historic Preservation says the nationwide average for a review is 16 days, and that 98% of those reviews conclude that the project will have no adverse effect on nearby historic resources.
    — Rachel Treisman, NPR, 15 Oct. 2026
  • High prices also a factor But despite positive weather news and whispers of an abundance of crab, other factors could affect prices in adverse ways for consumers.
    — Miami Herald, Miami Herald, 15 Oct. 2026
Definition of adverse
Adjective
  • The backlash against this perfectly reasonable post demonstrates the deleterious effect of mass immigration on our democratic system.
    — Matthew Ablon, CBS News, 14 Sep. 2026
  • 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
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 21 Oct. 2026.

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