The word "most duodenary" means "having twelve parts." Synonyms for this word can include "dodecahedral," which describes a twelve-sided shape, and "duodecimal," which refers to a number system based on twelve. Other possible synonyms might include "twelvefold," "dozen," or "XII," which is the Roman numeral for twelve. Additionally, "trigonal" or "triketra" may be used as synonyms as they both refer to symbols or patterns that have three branches or parts, with each branch dividing into four more. Overall, these synonyms convey the idea of something being divided into or composed of twelve parts.