How to Use harmful in a Sentence

harmful

adjective

• DDT has been proven to be extremely harmful to the environment.
• Most of the time, these changes are harmful to the virus or have no effect.
  — Brenda Goodman, CNN, 8 Feb. 2025
• If their viewpoint is not harmful, do your best to live and let live.
  — Tarot Astrologers, Chicago Tribune, 14 Apr. 2023
• That’s not right, and this lawsuit seeks to stop this harmful merger.
  — Alexander Coolidge, The Enquirer, 15 Jan. 2024
• That's not right, and this lawsuit seeks to stop this harmful merger.
  — Kate Gibson, CBS News, 15 Jan. 2024
• What’s wrong with the recent attention to the idea that AI can be harmful?
  — Jennifer Conrad, WIRED, 21 Dec. 2022
• Some of these supplements may even be harmful to your health.
  — Dallas News, 23 Dec. 2022
• That doesn’t mean the virus’s growth isn’t harmful, however.
  — Chloe Taylor, Fortune, 2 Mar. 2023
• Researchers may have found that the tartaric acid in grapes and raisins is the substance which is harmful to dogs.
  — Justin Gest, Newsweek, 10 Feb. 2025
• Here's what to know about the chemical and its harmful health effects.
  — Grace Tucker, The Enquirer, 24 Sep. 2024
• The hope is the breakthrough will pave the way for other vaccines to control all sorts of harmful viruses and pests.
  — Ben Tracy, CBS News, 8 Mar. 2023
• Some microbes are helpful to the body, while others can be harmful.
  — Andrea Michelson, Verywell Health, 29 Aug. 2023
• Often, a small glass of milk or bowl of yogurt is enough to protect your belly from the harmful effects of the medicine.
  — Avery Hurt, Discover Magazine, 10 Jan. 2024
• This can expose the brain to chemicals and proteins that are harmful to it – compounds that are safe in the blood but toxic to the brain.
  — Rachael Seidler, Discover Magazine, 22 Sep. 2023
• The unique design and structure make this wire creation sturdy — and sometimes harmful to the touch.
  — Brittany Kasko, Fox News, 24 Nov. 2023
• The feature will ensure that your ears are not exposed to loud noises that can be harmful.
  — Chris Smith, BGR, 30 Sep. 2022
• For 23 of the bars, consuming just an ounce a day would put an adult over a level for at least one of the metals that could be harmful, CR said.
  — Kate Gibson, CBS News, 30 Dec. 2022
• The hat can be folded into your bag without losing its shape and the wide brim can protect you from the sun's harmful rays.
  — Kristin Braswell, Travel + Leisure, 25 Sep. 2024
• The court further found that the statements in question were harmful to Pettit's defense.
  — Stephanie Slifer, CBS News, 26 Oct. 2022
• Be sure to move any harmful cleaners and household chemicals out of the reach of children.
  — Leada Gore | [e-mail], al, 19 Dec. 2022
• There are many Amanita species, many of which are not harmful, but all the lethal ones are classified in the section Phalloideae.
  — Beth Mole, Ars Technica, 13 Oct. 2022
• Within the edit timeframe, the author could change the sentiment of the tweet to something more harmful.
  — Moises Mendez Ii, Time, 1 Sep. 2022
• But according to Michel’s new lawyers, Kenner’s use of the program was harmful, not helpful, to his client’s case.
  — Bill Donahue, Billboard, 17 Oct. 2023
• That doesn’t mean that there won’t be serious consequences to AI, some of them harmful.
  — Evan Ackerman, IEEE Spectrum, 20 July 2023
• Reviewers are big fans of the stretchy, soft fabric, which also protects your skin from the sun’s harmful UV rays.
  — Kristin Canning, SELF, 2 July 2024
• Pathogens present in the soil — harmful bacteria, fungi, etc.
  — Nan Sterman, San Diego Union-Tribune, 7 Jan. 2023
• This is much more harmful than protests on ivy league campuses, but this is allowed to run rampant?
  — Will Oremus, Washington Post, 14 Dec. 2023
• The bacteria spores are harmful to many types of caterpillars.
  — Chris McKeown, The Enquirer, 4 Feb. 2023
• All are found in dust and rocks, and aren’t harmful in the context of those minute, naturally-occurring exposures.
  — Corinne Purtill, Los Angeles Times, 28 Mar. 2025
• This doesn’t mean discrimination is less harmful for Black, Hispanic/Latino or other racial and ethnic groups.
  — Monica Wang, The Conversation, 28 Mar. 2025