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
Recent Examples on the Web
However, certain conditions like yeast infections can risk your pet's well-being if left untreated.
—
Amber Smith, Discover Magazine, 3 Apr. 2024
This trauma, especially when left untreated, can have far-reaching consequences on wellbeing, showing up in areas like relationships, work habits, physical health, and more.
—Jess Cording, Forbes, 28 Mar. 2024
If left untreated, leprosy can lead to paralysis, crippling of hands and feet, disfigurement and blindness.
▪ What to look for: Dunn says leprosy can appear as patches or plaques that are well marked.
—Michelle Marchante, Miami Herald, 28 Mar. 2024
Left untreated, medical experts say REDs can damage an athlete’s metabolism, their bone health – leading to more fractures – their immune system, their cardiovascular health, their menstrual cycle, and mental health, as well as their athletic performance.
—Ben Church, CNN, 26 Mar. 2024
Recalls left untreated could lead to bigger problems.
—Abigail Celaya, The Arizona Republic, 25 Mar. 2024
The siblings of a 15-year-old Missouri boy who died two years ago have filed a wrongful death lawsuit, alleging his foster family allowed an ear infection to go untreated, leading to his death from sepsis.
—Samantha Latson, Kansas City Star, 22 Mar. 2024
For example, an untreated HSV-2 infection may result in meningitis, a brain and spinal cord fluid infection and inflammation, or acute tissue death within the retina, a layer of cells within the eye.6 Other complications are outlined below.
—Jennifer Sabour, Health, 9 Mar. 2024
That’s in addition to the other serious and costly conditions that can come from untreated or mismanaged obesity—like heart disease, liver disease stroke and type 2 diabetes.
—Dr. Tejaswi Kompala, Forbes, 29 Mar. 2024
Amber Smith, Discover Magazine, 3 Apr. 2024
This trauma, especially when left untreated, can have far-reaching consequences on wellbeing, showing up in areas like relationships, work habits, physical health, and more.
—Jess Cording, Forbes, 28 Mar. 2024
If left untreated, leprosy can lead to paralysis, crippling of hands and feet, disfigurement and blindness.
▪ What to look for: Dunn says leprosy can appear as patches or plaques that are well marked.
—Michelle Marchante, Miami Herald, 28 Mar. 2024
Left untreated, medical experts say REDs can damage an athlete’s metabolism, their bone health – leading to more fractures – their immune system, their cardiovascular health, their menstrual cycle, and mental health, as well as their athletic performance.
—Ben Church, CNN, 26 Mar. 2024
Recalls left untreated could lead to bigger problems.
—Abigail Celaya, The Arizona Republic, 25 Mar. 2024
The siblings of a 15-year-old Missouri boy who died two years ago have filed a wrongful death lawsuit, alleging his foster family allowed an ear infection to go untreated, leading to his death from sepsis.
—Samantha Latson, Kansas City Star, 22 Mar. 2024
For example, an untreated HSV-2 infection may result in meningitis, a brain and spinal cord fluid infection and inflammation, or acute tissue death within the retina, a layer of cells within the eye.6 Other complications are outlined below.
—Jennifer Sabour, Health, 9 Mar. 2024
That’s in addition to the other serious and costly conditions that can come from untreated or mismanaged obesity—like heart disease, liver disease stroke and type 2 diabetes.
—Dr. Tejaswi Kompala, Forbes, 29 Mar. 2024
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 16 Apr. 2024.
Copy CitationMedical Definition
untreated
adjective
un·treat·ed
-ˈtrēt-əd
: not subjected to treatment
an untreated disease
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