Depollution is the process of reducing or eliminating harmful pollutants in the environment. Therefore, the antonyms for de-polluted would be words that describe contamination or pollution. Some antonyms for de-polluted include polluted, contaminated, tainted, soiled, marred, fouled, and impure. These words denote the presence of pollutants such as chemicals, oil spills, radioactive materials, or waste products that harm or threaten life. Moreover, they imply a state of decay, degradation, and deterioration of the natural habitat, which can lead to health problems, ecological imbalances, or environmental crises. Therefore, it is essential to address these antonyms of de-polluted by promoting eco-friendly practices, sustainable development, and responsible stewardship of nature.