untreated

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Melanoma is the most serious form of skin cancer and, untreated, can be deadly.

From BBC • May 21, 2026

By day 24, 80% of the mice treated with ABT-263 had fully healed wounds, compared with 56% of untreated mice.

From Science Daily • May 20, 2026

One facility, San Antonio de los Buenos, can’t handle the volume, so mostly untreated sewage pours through a canyon creek and into the Pacific 5 miles south of the border, U.S. officials said.

From The Wall Street Journal • May 4, 2026

She added: "Our monitoring of untreated and treated water shows no evidence of these substances being present in our supply."

From BBC • May 3, 2026

Yes, an untreated cholera patient may eventually die from producing diarrheal fluid at a rate of several gallons per day.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond