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
  • Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean.
    — CA Weather Bot, Sacbee.com, 6 July 2026
  • Response efforts were slowed as debris blocked roads and live wires created hazardous conditions.
    — Anthony Thompson, USA Today, 4 July 2026
Definition of hazardous
Adjective
  • Nevertheless, there are several measures that gardeners can take to keep themselves, their children, plants and produce safe from potentially harmful contaminants stemming from the fire.
    — Christopher Buchanan, Los Angeles Times, 8 July 2026
  • Advertisement If sleep deprivation is harmful, do studies where people are asked to sleep longer show a beneficial effect?
    — Veronique Greenwood, Time, 8 July 2026
Definition of harmful
Adjective
  • And beneath the surface of those turquoise waters, marine life continues on without knowing their life is colliding in detrimental-to-them ways.
    — Melissa Cristina Márquez, Forbes.com, 2 July 2026
  • Substance abuse is greatly detrimental in its own right, of course, but sometimes the issues that stem from it—stress, emotional exhaustion, secrecy, avoidance—can have similarly devastating long-term effects on a person’s wellbeing.
    — Kaitlyn Gomez, Miami Herald, 29 June 2026
Definition of detrimental
Adjective
  • Teri handled higher-value finds and saw that potentially dangerous items – like firearms and knives – got to the local sheriff’s office.
    — Alisha Ebrahimji, CNN Money, 6 July 2026
  • Looking back through the sequence, Brazil have good numbers back and there is little need for anyone to overcommit — but a lazy tackle from behind leads to a free kick in a dangerous area.
    — Mark Carey, New York Times, 6 July 2026
Definition of dangerous
Adjective
  • But even with federal legislation prohibiting discrimination, the pernicious virus of bias infects too many institutions.
    — New York Daily News Editorial Board, New York Daily News, 19 June 2026
  • This safety feature is indispensable, which makes this new wave of thefts particularly pernicious.
    — The Editorial Board, Chicago Tribune, 11 June 2026
Definition of pernicious
Adjective
  • The suit makes three claims against the organization (defamation, tortious interference and injurious falsehood) and asks a judge to award Barth and his firm more than $10 million in damages.
    — Kacen Bayless, Kansas City Star, 7 July 2026
  • Kevin Maxwell, 37, of Canarsie, Brooklyn, was charged with assault and menacing, both as hate crimes, and acting in a manner injurious to a child.
    — John Annese, New York Daily News, 5 July 2026
Definition of injurious
Adjective
  • These conditions can increase your vulnerability to adverse effects from poor air quality.
    — Southern California Weather Report, Oc Register, 4 July 2026
  • Valentine also testified that the FDA encourages infant formula companies to send in all adverse event reports and that nothing prevented Mead Johnson from doing so.
    — David Hilzenrath, USA Today, 2 July 2026
Definition of adverse
Adjective
  • The quickest way to artificially boost a company’s stock price is to slash R&D, gut capex, and initiate massive share buybacks, often with deleterious long-term consequences.
    — Jeffrey Sonnenfeld, Fortune, 6 July 2026
  • Lawyers have been accused of unnecessary complexity, deleterious delay, excessive cost, and self-interest for centuries.
    — Joseph Andrew, Forbes.com, 2 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 9 Jul. 2026.

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