untreated
adjective
un·treat·ed
ˌən-ˈtrē-təd 
: not treated
untreated wastewater
especially
: not improved or controlled medically
an untreated case of pneumonia
untreated diabetic patients
Synonyms
Examples of untreated in a Sentence
untreated wool
Recent Examples on the Web
Feng shares valuable insights into common misconceptions, the impact of untreated mental health conditions, and practical strategies for supporting mental well-being of older adults.
—
Allison Palmer, Sacramento Bee, 29 May 2024
He was rushed to the nearby Soroka Medical Center, where doctors performed emergency surgery to remove a malignant and aggressive brain tumor, fatal if left untreated.
—Adam Sella, New York Times, 26 May 2024
See all Example Sentences for untreated 
Allison Palmer, Sacramento Bee, 29 May 2024
He was rushed to the nearby Soroka Medical Center, where doctors performed emergency surgery to remove a malignant and aggressive brain tumor, fatal if left untreated.
—Adam Sella, New York Times, 26 May 2024
See all Example Sentences for untreated
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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Cite this Entry
“Untreated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/untreated. Accessed 1 Jun. 2024.
Copy CitationMedical Definition
untreated
adjective
un·treat·ed
-ˈtrēt-əd
: not subjected to treatment
an untreated disease
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