Antonyms of noun contamination

1 of 3 senses of contamination

Sense 3
contamination, pollution -- (the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors)
       Antonym of decontamination (Sense 1)
      => decontamination -- (the removal of contaminants)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun contamination

3 senses of contamination

Sense 1
contamination, taint -- (the state of being contaminated)
       => impurity, impureness -- (the condition of being impure)

Sense 2
contaminant, contamination -- (a substance that contaminates)
       => material, stuff -- (the tangible substance that goes into the makeup of a physical object; "coal is a hard black material"; "wheat is the stuff they use to make bread")

Sense 3
contamination, pollution -- (the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors)
       => soiling, soilure, dirtying -- (the act of soiling something)