Wiktionary
unoxidized
a. Not oxidized
Usage examples of "unoxidized".
When black teas are processed, the leaves are oxidized for a number of hours, and it is during this time that most, but not all, of the unoxidized polyphenols are transformed through air exposure.
It was lunar morning, and the gleaming, uneroded, unoxidized metal of the quiescent launcher pointed directly at the sun.