untreated

adjective

un·​treat·​ed ˌən-ˈtrē-təd How to pronounce untreated (audio)
: not treated
untreated wastewater
especially : not improved or controlled medically
an untreated case of pneumonia
untreated diabetic patients

Examples of untreated in a Sentence

Recent Examples on the Web But in the nearly four-year study, children on the therapy grew to heights within average norms, and had far more flexible shoulder, hip, and knee joints than untreated children. Elaine Chen, STAT, 2 May 2024 Bangladesh made history in 2023 as the first country anywhere to eliminate kala-azar, otherwise known as visceral leishmaniasis, a disease transmitted by sand flies that is 95% fatal when left untreated. Charlie Campbell, TIME, 2 May 2024 See all Example Sentences for untreated 

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.

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of untreated was in the 15th century

Dictionary Entries Near untreated

Cite this Entry

“Untreated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/untreated. Accessed 8 May. 2024.

Medical Definition

untreated

adjective
un·​treat·​ed -ˈtrēt-əd How to pronounce untreated (audio)
: not subjected to treatment
an untreated disease

More from Merriam-Webster on untreated

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