Chlorinated is a term used to describe the process of adding chlorine to a substance, typically water, to purify it. Synonyms for chlorinated include disinfected, sanitized, cleansed, purified, decontaminated, and sterilized. These words are all often used interchangeably with chlorinated, indicating that a substance has undergone a process to kill harmful bacteria or microorganisms. Each of these terms emphasizes the removal of impurities and the importance of cleanliness. While chlorinated is a common term in the context of swimming pools, these synonyms can be used in a variety of situations where purification is critical.