adj. 25B6; adjective
a sonorous voice : RESONANT, rich, full, round, booming, deep, clear, mellow, orotund, fruity, strong, resounding, reverberant.
sonorous words of condemnation : IMPRESSIVE, imposing, grandiloquent, magniloquent, high-flown, lofty, orotund, bombastic, grandiose, pompous, pretentious, overblown, turgid; oratorical, rhetorical; informal highfalutin.