|epə|dīktik adjective
Etymology: Greek epideiktikos, from (assumed) Greek epideiktos (verbal of Greek epideiknynai to exhibit, show off, display, from epi- + deiknynai to show) + Greek -ikos -ic — more at diction
: designed primarily for rhetorical effect : demonstrative
epideictic style of writing
the Indian speeches are … more of the nature of the forensic and, occasionally, epideictic or panegyric, than of deliberative oratory — H.J.C.Grierson
— used especially of ceremonial orations of praise or blame