Toilet water is a term used to describe the water found in a toilet bowl. Instead of using this term, there are many other synonyms that can be used to describe this type of water. Some of these synonyms include bowl water, commode water, loo water, lavatory water, WC water, and restroom water. All of these terms are more polite and less offensive than using the term toilet water. They can be used in any situation where the conversation topic involves the water found in a toilet bowl. So, next time you need to describe the water in a toilet bowl, these synonyms can come in handy.