
Untreated
Potential Degradation
Untreated materials may degrade faster than treated ones, often due to exposure to environmental factors.
If you leave that untreated metal outside, it could rust quickly.
Natural State
'Untreated' often implies that the substance is in its natural, original state without any alterations.
I prefer furniture made from untreated wood for a more rustic look.
Environmental Concern
Using 'untreated' may refer to concerns over chemicals or processes that are harmful to the environment.
Many prefer untreated food products to avoid pesticides.