contaminado
contaminated
contaminate
to make impure by contact or mixture
+
-ado
past participle ending
Contaminado means contaminated and is the past participle1 (-ado1) form of the verb related to the English word contaminate0.
adjective
- contaminatedPolluted or made impure by the addition of harmful substancesEl agua del río está contaminada. // The river water is contaminated.