How to Use untreated in a Sentence

untreated

adjective
  • If left untreated, the body can’t heal.
    — Julia Ries Wexler, Outside, 16 Oct. 2025
  • Left untreated, both lead to death.
    — Kaan Ozcan, NBC news, 3 Mar. 2026
  • Sidewalks and untreated roads could be icy, so take it slow.
    — Justin Lewis, CBS News, 19 Jan. 2026
  • There's a chance for flash freezing on wet, untreated roads.
    — Hope Karnopp, jsonline.com, 28 Dec. 2025
  • Some areas of heavy snowfall could see an inch of snow on untreated roads.
    — Mike Rose, cleveland, 28 Dec. 2021
  • This can lead to organ damage and even death if left untreated.
    — Vanessa Etienne, Peoplemag, 31 May 2024
  • Left untreated, sepsis can lead to death.
    — Fred Schulte, Miami Herald, 30 Dec. 2025
  • Boxy houses and boardwalks made of untreated cedar have gone gray from the salt air.
    — Evan Moffitt, New York Times, 31 Aug. 2023
  • If left untreated, the spots may grow enough to connect and form large patches.
    — Emily Hayes, Martha Stewart, 16 June 2026
  • If left untreated, the condition can last many weeks or months.
    — CBS News, 22 Oct. 2019
  • When left untreated, the disease has a death rate of 97%.
    — Drew Pittock, USA Today, 21 May 2026
  • Share plants with like-minded neighbors, or grow plants from untreated seeds.
    — Phaedra Singelis, ABC News, 3 Apr. 2021
  • Start by rinsing fresh, untreated rose petals in a colander.
    — Melissa Kravitz Hoeffner, Martha Stewart, 27 June 2026
  • Completely untreated raw sheet steel can rust through in as little as a few years.
    — Ben Wojdyla, Popular Mechanics, 8 Sep. 2020
  • The venomous bite of the funnel-web spider can kill in hours if left untreated.
    — Alex Fox, Smithsonian Magazine, 25 Sep. 2020
  • If left untreated, long-term health issues may occur.
    — Arricca Elin Sansone, Southern Living, 25 Apr. 2026
  • Left untreated, the rabies virus can be fatal to both humans and pets.
    — Annie Berman, Anchorage Daily News, 21 Apr. 2021
  • The air quality was thick and green, with notes of juniper and untreated wood.
    — Fran Tirado, Them., 4 Sep. 2025
  • The bacteria can spread to other parts of the body if untreated.
    — Ryan W. Miller, USA TODAY, 7 July 2020
  • If left untreated, the cancer can spread to other areas of the body.
    — Edward Segarra, USA Today, 19 Dec. 2025
  • If left untreated, the cancer can spread to other areas of the body.
    — Edward Segarra, USA Today, 23 Sep. 2025
  • If left untreated, symptoms can last from a few days to over a month, per health officials.
    — Fox News, 8 Aug. 2020
  • AFib is a condition which, if left untreated, can lead to stroke.
    — Francisco Lahoz, PCMAG, 8 June 2022
  • Lavalley had a first-hand look at how untreated cholesterol affects the heart.
    — Sara Moniuszko, USA Today, 10 Feb. 2026
  • Opt for a birdhouse with untreated wood as the inner surface.
    — Molly Burford, Southern Living, 25 Feb. 2026
  • The wounds will grow if left untreated and can become infected.
    — Kerry Breen, CBS News, 20 Mar. 2023
  • If left untreated, rheumatoid arthritis can lead to damage of the joints.
    — Kevin Deane, The Conversation, 23 Jan. 2026
  • Left untreated, the fungus will weaken and kill the entire plant.
    — Leanne Potts, Better Homes & Gardens, 20 Jan. 2026
  • The child who was left to die from untreated appendicitis by a system that failed to save her.
    — Melissa Fletcher Stoeltje, San Antonio Express-News, 23 Dec. 2020
  • Avoid using untreated wood to build the bin as termites may become a problem.
    — Dan Gill, NOLA.com, 18 Nov. 2020

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'untreated.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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