Main entry: untreated
Definition: not subjected to chemical or physical treatment
Usage: an untreated fabric
Antonyms: treated
Definition: subjected to a physical (or chemical) treatment or action or agent
Antonyms: cooked
Definition: having been prepared for eating by the application of heat
Main entry: untreated
Definition: not given medical care or treatment
Usage: an untreated disease; the untreated wounded lay on makeshift cots
Antonyms: treated
Definition: given medical care or treatment
Main entry: untreated
Definition: (of a specimen for study under a microscope) not treated with a reagent or dye
Antonyms: stained
Definition: marked or dyed or discolored with foreign matter