Antonyms of adj purulent

1 sense of purulent

Sense 1
purulent, pussy -- (containing pus; "a purulent wound")

INDIRECT (VIA septic) -> antiseptic -- (thoroughly clean and free of or destructive to disease-causing organisms; "doctors in antiseptic green coats"; "the antiseptic effect of alcohol"; "it is said that marjoram has antiseptic qualities")

Similarity of adj purulent

1 sense of purulent

Sense 1
purulent, pussy -- (containing pus; "a purulent wound")
       => septic (vs. antiseptic), infected -- (containing or resulting from disease-causing organisms; "a septic sore throat"; "a septic environment"; "septic sewage")