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
Their larvae, which burrow into the flesh of cattle and can be fatal if untreated, can devastate wildlife and bring financial ruin to ranchers.
—
Robert Abitbol,
USA Today,
4 July 2026
Be sure to soak an untreated cedar plank in water for 1 to 2 hours before cooking.
—
Michele Laufik,
Martha Stewart,
3 July 2026
For people already dealing with untreated hearing loss, this offers a low cost, low commitment way to test the waters before deciding whether a dedicated prescription hearing aid is worth the investment.
—
Allison Palmer
july 2,
Fort Worth Star-Telegram,
2 July 2026
The aftermath has left medics worried that the fallout could pave the way for a widening medical crisis of untreated injuries and infectious diseases in a healthcare system already on the brink.
—
Regina Garcia Cano,
Los Angeles Times,
2 July 2026
See All Example Sentences for untreated
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Robert Abitbol,
USA Today,
4 July 2026
Be sure to soak an untreated cedar plank in water for 1 to 2 hours before cooking.
—
Michele Laufik,
Martha Stewart,
3 July 2026
For people already dealing with untreated hearing loss, this offers a low cost, low commitment way to test the waters before deciding whether a dedicated prescription hearing aid is worth the investment.
—
Allison Palmer
july 2,
Fort Worth Star-Telegram,
2 July 2026
The aftermath has left medics worried that the fallout could pave the way for a widening medical crisis of untreated injuries and infectious diseases in a healthcare system already on the brink.
—
Regina Garcia Cano,
Los Angeles Times,
2 July 2026
See All Example Sentences for untreated
Cite this Entry
“Untreated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/untreated. Accessed 7 Jul. 2026.
Copy CitationMedical Definition
untreated
adjective
un·treat·ed
-ˈtrēt-əd
: not subjected to treatment
an untreated disease
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