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Showing results for untreated. Search instead for unretreated.
Synonyms

untreated

British  
/ ʌnˈtriːtɪd /

adjective

  1. (of an illness, etc) not having been dealt with

  2. not having been processed in any way

    untreated sewage

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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Behavioral testing found no meaningful differences between treated and untreated animals in movement, water consumption, anxiety-like behavior, or fecal production.

From Science Daily Jul. 24, 2026

But even a short gap can mean skipped medications, delayed appointments or untreated symptoms that become urgent and potentially more serious than they would otherwise have been.

From Salon Jul. 19, 2026

Because her endometriosis had been left untreated for so long, it had formed into frozen pelvis disease where "everything was stuck together".

From BBC Jul. 19, 2026

The illness generally isn’t deadly, but diarrhea—which if untreated may last a month—can cause dangerous dehydration.

From Slate Jul. 17, 2026

Kwadzo died one morning, probably from his untreated wound, Amari thought, or maybe from his untreated sorrow, but she could not mourn his loss.

From "Copper Sun" by Sharon M. Draper

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