[adj] containing or resulting from disease-causing organisms; "a septic sore throat"; "a septic environment"; "septic sewage" [adj] of or relating to or caused by putrefaction; "the septic action occurs at the bottom of the septic tank"
abscessed, contaminated, contaminative, dirty, festering, infected, infectious, infective, purulent, pussy, putrefacient, putrefactive, putrid, septicemic
antiseptic