Anthropophaginian refers to a person who practices cannibalism, which is considered taboo and illegal in most cultures. As such, it's difficult to find any antonyms for this word. However, some possible antonyms could be 'vegetarian', 'herbivore', or 'omnivore', which refer to people who choose not to consume any meat, animal-based products, or only a limited amount of meat respectively. These antonyms highlight the opposite behavior to Anthropophaginian and indicate a preference for plant-based foods. Overall, while it may be challenging to find direct antonyms for this word, the concept of compassionate, cruelty-free food choices could be seen as an antonym.