untreated

adjectiveB2+Rare in speech; mostly a word you read · #13,157 of 15,258leans written

Untreated means left without the care or the chemical process needed. Untreated sewage, an untreated condition, untreated timber.

In medicine it names what happens if nothing is done, which is how the seriousness of a condition is described. Untreated timber rots within a few years in contact with the ground.

Definitions of untreated

1adjectiveuntreatedLeft without the care or the chemical process needed.B2+
“If left untreated, the infection could spread to the rest of the body.”

untreated is a state.

Where it comes from

From un- + treated.

Etymology from Wiktionary, CC BY-SA

Practise this word

untreated in the wild

The purpose of the study was to observe the effects of the disease when untreated, to the point of death and autopsy.
Tuskegee Syphilis Study
Although rare, cases of long-term untreated CCHS have been reported and are termed late onset CCHS (LO-CCHS).
Central hypoventilation syndrome
The tumors cause fibrosis of tissues and impede digestion or organ function, and if left untreated, the tumors and mucin they produce will fill the abdominal cavity.
Pseudomyxoma peritonei
Prognosis with treatment in many cases is optimistic, but the disease is lethal if untreated, with death occurring via cachexia, bowel obstruction, or other types of complications.
Pseudomyxoma peritonei
When a fuel tank is punctured the fuel seeps into these layers, causing the untreated layer to swell, closing and thus sealing the puncture.
Self-sealing fuel tank

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From Wikipedia, CC BY-SA 4.0. These sentences were written by other people about their own subjects; they are here to show the word at work, not as anybody’s opinion.

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