adj. 25B6; adjective
Halliwell's orotund voice : DEEP, sonorous, strong, powerful, full, rich, resonant, loud, booming.
the orotund rhetoric of his prose : POMPOUS, pretentious, affected, fulsome, grandiose, ornate, overblown, flowery, florid, high-flown, magniloquent, grandiloquent, rhetorical, oratorical; informal highfalutin, purple.