Untreated Meaning

/əˈntritɪd/
B2

Definition, CEFR level B2, pronunciation, examples, and quiz.

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adjNot treated.

Tom's bladder burst due to untreated venereal disease.
The bubonic plague has a case-fatality ratio of 30%-100% if left untreated.
Synonyms:
raw
Antonyms:
None
CEFR Practice Quiz
If left ____, the bacterial infection can quickly spread to other parts of the body.
CEFR Practice Quiz (Alternate)
If left ____, the small infection could become much more serious and require a stay in the city hospital today.

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English treated English untreated From un- + treated.

"The volume of the flame given out by the untreated wood was estimated at three times that given out by the best treated wood." — 1905, Environmental Control & Safety Management, page 365:
"This short list represents but a few items of an extensive and open-ended list of untreated Indian English lexis." — 2012, James Lambert, “Beyond Hobson-Jobson: A new lexicography for Indian English”, in World Englishes, page 302:
"The thrill of eventually finding a job is quickly offset by her untreated depression." — 2019 August 16, Monalesia Earle, Writing Queer Women of Color: Representation and Misdirection in Contemporary Fiction and Graphic Narratives, McFarland, →ISBN, page 32:
"For instance, MICP-enabled [microbial-induced calcium carbonate precipitation] bacterial mortar repaired cracks 3.5 times faster than untreated samples, significantly improving strength under high loads." — 2024 October 10, Tiana Milović et al., “Enhancing Compressive Strength of Cement by Indigenous Individual and Co-Culture Bacillus Bacteria”, in Materials, volume 17, number 20, →DOI, archived from the original on 24 Feb 2025:

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CEFR Practice Quiz
If left ____, the bacterial infection can quickly spread to other parts of the body.
CEFR Practice Quiz (Alternate)
If left ____, the small infection could become much more serious and require a stay in the city hospital today.

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