Synonyms for Sonorousness:

n.

•resonance (noun)
resonance, reverberation, vibrancy, echo.
•sonorousness (noun)
vibrancy, plangency, ringing, reverberance, sonority, resonance.
•sound (noun)
reverberation, ringing, sonority, resonance.

Other synonyms:

•Other relevant words:
reverberance, ringing, sonority, plangency.

Usage examples for sonorousness

1. From time to time there were church- bells, variously like tin pans and iron pots in tone, without sonorousness in their noise, or such wild clangor as some Italian church- bells have. – Familiar Spanish Travels by W. D. Howells