Most duodecimal refers to the number that is closest to twelve in a list or set of numbers. Some synonyms that can be used to describe the term "most duodecimal" are "closest to twelve," "nearest dozen," and "most divisible by twelve." These terms indicate the idea that the number in question is not exactly twelve, but rather is the number that is the closest to it. Other synonyms that could be used include "twelve-adjacent," "overtwelve," or simply "about twelve." These synonyms all convey the same meaning and help to describe a specific number that is closest to the value of twelve.