untreated
Britishadjective
-
(of an illness, etc) not having been dealt with
-
not having been processed in any way
untreated sewage
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.
By nearly six months of age, when untreated mice typically have brains packed with amyloid plaques, the treated mice had no detectable plaques.
From Science Daily • Mar. 11, 2026
If left untreated, it can lead to liver damage, liver cancer, arthritis, and other serious health problems.
From Science Daily • Feb. 21, 2026
The burst sent some 240 million gallons of untreated waste from toilets and sinks into the Potomac.
From The Wall Street Journal • Feb. 19, 2026
With rain about, the Met Office has warned commuters to stay vigilant due to the risk of ice forming on untreated surfaces which could lead to travel disruption.
From BBC • Feb. 15, 2026
I learned later that Dr. Luce had emphasized the medical risk in letting my condition go untreated.
From "Middlesex: A Novel" by Jeffrey Eugenides
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
