Coprophobia is the fear of feces and the fear of defecation. If you are looking for synonyms for coprophobia, there are a few words you can use to describe this fear. Some words that are similar in meaning include scatophobia, which is the fear of any type of feces or excrement, and fecalophobia, which is the fear of your own feces. Another word that you could use is crosophobia, which is the fear of contamination or filth. Overall, these words all describe a fear or aversion to feces or anything related to defecation. If you experience any of these phobias, it's important to seek professional help to address and overcome them.