Sonorous means deep, full and resonant in sound. A sonorous voice, sonorous bells, sonorous prose.
It praises fullness rather than volume, and applied to prose it can be a gentle criticism — sonorous writing sounds grand and may say little. The Latin sonor means a sound, and sound, sonic and resonate are relatives.
1adjectivesonorousDeep, full and resonant in sound.
“The actor's sonorous voice filled the theatre without a microphone.”
sonorous is a quality of sound.
Latin sonorus comes from sonor, a sound, from sonare, to sound. Sonnet and resonate share the root.
Latin
sonōrus
English, today
sonorous
Built from
Latin sonōrus, from sonor (“sound”), early 17th century.
Etymology from Wiktionary, CC BY-SA