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
Your blood sugar rises as a result and leaves you at risk for serious complications if untreated.
—
Julia Ries, Health, 9 Apr. 2025
The five-year survival rate for people with the disease who undergo a bone marrow transplant is higher than 75%, while a majority of patients who go untreated die within a year from the disease, according to a study published by the National Institiutes of Health.
—Vanessa Etienne, People.com, 8 Apr. 2025
Postpartum preeclampsia can cause seizures and other serious complications if left untreated.
—Jack Guy, CNN Money, 8 Apr. 2025
The genre has documented events such as the Tuskegee syphilis study – the 40-year experiment, conducted without informed consent, on Black men by the U.S. Public Health Service to study the effects of the disease when left untreated.
—A.d. Carson, The Conversation, 7 Apr. 2025
See All Example Sentences for untreated
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Julia Ries, Health, 9 Apr. 2025
The five-year survival rate for people with the disease who undergo a bone marrow transplant is higher than 75%, while a majority of patients who go untreated die within a year from the disease, according to a study published by the National Institiutes of Health.
—Vanessa Etienne, People.com, 8 Apr. 2025
Postpartum preeclampsia can cause seizures and other serious complications if left untreated.
—Jack Guy, CNN Money, 8 Apr. 2025
The genre has documented events such as the Tuskegee syphilis study – the 40-year experiment, conducted without informed consent, on Black men by the U.S. Public Health Service to study the effects of the disease when left untreated.
—A.d. Carson, The Conversation, 7 Apr. 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 13 Apr. 2025.
Copy CitationMedical Definition
untreated
adjective
un·treat·ed
-ˈtrēt-əd
: not subjected to treatment
an untreated disease
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