sonorousness vs sonority

sonorousness and sonority both are nouns.

Word	Noun	Adjective	Verb	Adverb
sonorousness	Yes	No	No	No
sonority	Yes	No	No	No

As nouns, sonorousness and sonority are synonyms defined as:

sonorousness and sonority: having the character of a loud deep sound; the quality of being resonant

Other synonyms of sonorousness include plangency, resonance, reverberance, ringing, vibrancy.

sonorousness (noun)	sonority (noun)
having the character of a loud deep sound; the quality of being resonant	having the character of a loud deep sound; the quality of being resonant