|Adj.||1.||treated - subjected to a physical (or chemical) treatment or action or agent; "the sludge of treated sewage can be used as fertilizer"; "treated timbers resist rot"; "treated fabrics resist wrinkling"|
untreated - not subjected to chemical or physical treatment; "an untreated fabric"
|2.||treated - (of a specimen for study under a microscope) treated with a reagent or dye that colors only certain structures|
|3.||treated - given medical care or treatment; "a treated cold is usually gone in 14 days; if left untreated it lasts two weeks"|
untreated - not given medical care or treatment; "an untreated disease"; "the untreated wounded lay on makeshift cots"
|4.||treated - made hard or flexible or resilient especially by heat treatment; "a sword of tempered steel"; "tempered glass"|