The term "fruitarian" refers to someone who follows a primarily fruit-based diet. There are several synonyms that could be used to describe someone who is "most fruitarian." One term might be "fruitivore," which emphasizes the individual's focus on consuming fruit as their main source of sustenance. Another synonym could be "frugivore," which refers to an animal or person that relies mainly on fruit for their diet. This term also highlights the individual's preference for consuming fruits over other types of food. Finally, the word "pomology" could be used to describe someone who has a deep understanding and appreciation for fruit, and who incorporates a large variety of fruits into their diet.