De-contaminates is a verb that refers to the process of removing or neutralizing harmful substances from a place, object, or organism. Antonyms for this word are those that mean the opposite - to contaminate, pollute, infect, or taint. These actions introduce harmful substances into a previously clean or safe environment or organism. Neglect, worsen, exacerbate, and deteriorate are also antonyms that denote actions that make something worse or more dangerous. All these antonyms have negative implications and often lead to irreversible damage, making it crucial to prioritize de-contamination measures to ensure safety and preserve health and the environment.