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
Left untreated, hypothermia can cause the heart and respiratory system to fail and eventually can lead to death.
—
Barbara A. Perry, Newsweek, 27 Jan. 2025
Fluoride has helped decrease the number of cavities, which are essentially infections that could cause greater bodily harm if left untreated, Polite said.
—Alexandra Kukulka, Chicago Tribune, 26 Jan. 2025
Unfortunately, if left untreated, stains on robes can become set in and difficult, if not impossible, to remove.
—Jolie Kerr, Better Homes & Gardens, 25 Jan. 2025
If left untreated, HACE can induce a coma within 12 to 24 hours.
High-altitude pulmonary edema (HAPE) is a serious condition that can develop on its own or with AMS and HACE.
—Cristina Mutchler, Verywell Health, 24 Jan. 2025
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Barbara A. Perry, Newsweek, 27 Jan. 2025
Fluoride has helped decrease the number of cavities, which are essentially infections that could cause greater bodily harm if left untreated, Polite said.
—Alexandra Kukulka, Chicago Tribune, 26 Jan. 2025
Unfortunately, if left untreated, stains on robes can become set in and difficult, if not impossible, to remove.
—Jolie Kerr, Better Homes & Gardens, 25 Jan. 2025
If left untreated, HACE can induce a coma within 12 to 24 hours.
High-altitude pulmonary edema (HAPE) is a serious condition that can develop on its own or with AMS and HACE.
—Cristina Mutchler, Verywell Health, 24 Jan. 2025
See all Example Sentences for untreated
Dictionary Entries Near untreated
Cite this Entry
“Untreated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/untreated. Accessed 1 Feb. 2025.
Copy CitationMedical Definition
untreated
adjective
un·treat·ed
-ˈtrēt-əd
: not subjected to treatment
an untreated disease
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