sonority vs sonorousness

sonority and sonorousness both are nouns.

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

As nouns, sonority and sonorousness are synonyms defined as:

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

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

sonority (noun)	sonorousness (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