adjective
untreated
adjective
1
Not given medical care or a chemical process meant to fix, protect, or purify it.
"Left untreated, the infection can spread quickly."
"The wood was untreated and began to rot within a year."
How to Use Untreated
Learner’s notesIn plain EnglishNothing has been done to fix, cure, or process it yet.
Common pairings
left untreated
untreated wound
untreated water
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Left _____, the infection can spread quickly.
Etymology
From un- (\"not\") plus treated.