Seditionist is a term used to describe someone who incites rebellion or resistance against a government or authority. Its antonyms would be words that have the opposite meaning, such as loyalist, patriot, supporter, follower, obedient, or conformist. A loyalist is someone who supports a government or authority, while a patriot is someone who loves and supports their country. A supporter is someone who backs a particular cause or candidate, while a follower is someone who obeys and follows a leader or authority figure. Finally, obedient and conformist describe someone who follows rules and social norms without questioning them.