Antonyms of adj contaminative

1 sense of contaminative

Sense 1
contaminative -- (making impure by contact or mixing)

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 contaminative

1 sense of contaminative

Sense 1
contaminative -- (making impure by contact or mixing)
       => septic (vs. antiseptic), infected -- (containing or resulting from disease-causing organisms; "a septic sore throat"; "a septic environment"; "septic sewage")