giving out or capable of giving out a sound, esp. a deep, resonant sound, as a thing or place

a sonorous cavern.

loud, deep, or resonant, as a sound.

rich and full in sound, as language or verse.

high-flown; grandiloquent

a sonorous speech.

adjective

booming , full-voiced , loud , loud-voiced , powerful , resounding , reverberating , rich , ringing , rotund , thundering , mellow , orotund , plangent , round , vibrant , aureate , bombastic , declamatory , flowery , fustian , grandiloquent , high-flown , high-sounding , magniloquent , overblown , rhetorical , swollen , deep , full , grandiose , imposing , impressive , noisy , resonant , stentorian