untreated

adj

1. (not-comparable)Not 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.”

   “This short list represents but a few items of an extensive and open-ended list of untreated Indian English lexis.”

   “The thrill of eventually finding a job is quickly offset by her untreated depression.”

   “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.”