We don't have synonyms for epideictic yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are apodeictic, epidictic and endeictic.
(adj) :
Of or pertaining to rhetoric of ceremony, declamation, and demonstration, most often the rhetoric of funerals and other formal events. One of the three branches, or "species" (eidē), of rhetoric as outlined by Aristotle.
(adj) :
Of or pertaining to rhetoric of ceremony, declamation, and demonstration, most often the rhetoric of funerals and other formal events. One of the three branches, or "species" (eidē), of rhetoric as outlined by Aristotle.