The word "most excursional" is a rare and perhaps invented word that does not appear in most dictionaries. However, based on its components, it can be spelled as /məʊst ɛkskɜ:ʃənəl/, with the stressed syllable on "ex" and the last syllable pronounced as "shun-ul." The word can be interpreted as meaning "most characterized by excursions," or "having the most excursions." It is an unusual adjective that may be used creatively in specific contexts.