The spelling of the word "most seditionary" can be a bit tricky, especially for those who are unfamiliar with its pronunciation. Using IPA phonetic transcription, we can break down the word into its individual sounds. "Most" is pronounced as "məʊst" and "seditionary" as "sɛdɪʃənəri". The stress is on the second syllable of "seditionary". The word "seditionary" means one who promotes sedition or rebellion against the government. When used with "most", it signifies that the person is the most seditionary among a group of people.