untreated

From un- +‎ treated.

untreated (not comparable)

1. Not treated.
   • 1905, Environmental Control & Safety Management, page 365:

     The volume of the flame given out by the untreated wood was estimated at three times that given out by the best treated wood.

   • 2012, James Lambert, “Beyond Hobson-Jobson: A new lexicography for Indian English”, in World Englishes‎^[1], page 302:

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

   • 2019 August 16, Monalesia Earle, Writing Queer Women of Color: Representation and Misdirection in Contemporary Fiction and Graphic Narratives, McFarland, →ISBN, page 32:

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

   • 2024 October 10, Tiana Milović et al., “Enhancing Compressive Strength of Cement by Indigenous Individual and Co-Culture Bacillus Bacteria”, in Materials‎^[2], volume 17, number 20, →DOI, archived from the original on 24 February 2025:

     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.

• treated

• reattuned