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.

Welsh Water said low-levels of cryptosporidium, a parasite which can cause stomach illnesses, were found during initial testing of the untreated water.

From BBC • May 27, 2026

They were more successful at identifying familiar objects, recognizing new ones, and detecting changes in their surroundings compared to untreated controls.

From Science Daily • May 26, 2026

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

From BBC • May 21, 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

This did not happen on nearby untreated areas.

From "Silent Spring" by Rachel Carson