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
Examples of untreated in a Sentence
untreated wool
Recent Examples on the Web
The untreated ectopic pregnancy resulted in one of her fallopian tubes rupturing.
—
Vanessa Etienne, People.com, 6 June 2025
While most ovarian cysts are completely harmless, there is a small chance that complications could arise if larger cysts are left untreated.
—Caroline C. Boyle, USA Today, 4 June 2025
Some of these infections stop on their own, but others are too stubborn, or too serious, to leave untreated.
—Sam Walters, Discover Magazine, 4 June 2025
Among the potential consequences of untreated body dysmorphia: anxiety, extensive medical bills, severe depression and suicidal thoughts and behaviors.
—Scott Lafee, San Diego Union-Tribune, 3 June 2025
See All Example Sentences for untreated
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Vanessa Etienne, People.com, 6 June 2025
While most ovarian cysts are completely harmless, there is a small chance that complications could arise if larger cysts are left untreated.
—Caroline C. Boyle, USA Today, 4 June 2025
Some of these infections stop on their own, but others are too stubborn, or too serious, to leave untreated.
—Sam Walters, Discover Magazine, 4 June 2025
Among the potential consequences of untreated body dysmorphia: anxiety, extensive medical bills, severe depression and suicidal thoughts and behaviors.
—Scott Lafee, San Diego Union-Tribune, 3 June 2025
See All Example Sentences for untreated
Cite this Entry
“Untreated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/untreated. Accessed 12 Jun. 2025.
Copy CitationMedical Definition
untreated
adjective
un·treat·ed
-ˈtrēt-əd
: not subjected to treatment
an untreated disease
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