1. having a deep, full, and reverberating sound
2. impressive in style of speech; grandiloquent
Usage: formal

Examples

• The actor’s sonorous voice filled the entire theater.
• The church bells produced a sonorous tone that echoed through the valley.
• His sonorous bass voice made him perfect for radio broadcasting.
• The politician delivered his speech in sonorous tones that impressed the audience.
• The sonorous sound of the cello resonated beautifully in the concert hall.
• She spoke in sonorous phrases that sounded important but said little.
• The sonorous boom of thunder rolled across the countryside.