IPA: /kənˈtæmɪnətɪv/
KK: /kənˈtæmɪnətɪv/
Describing something that causes contamination or pollution.
The factory was fined for its contaminative practices that harmed the local environment.
Contaminative → It is formed from "contaminare" (from Latin, meaning to make unclean or impure) and the suffix "-ive" (meaning having the nature of). The word "contaminative" refers to something that has the nature of making something unclean or impure.
Think of something that 'makes unclean' ('contaminare') — that's why 'contaminative' describes something that causes contamination.