suavity vs suaveness

suavity and suaveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
suavity	Yes	No	No	No
suaveness	Yes	No	No	No

As nouns, suavity and suaveness are synonyms defined as:

suavity and suaveness: the quality of being bland and gracious or ingratiating in manner

Other synonyms of suavity include blandness, smoothness.

suavity (noun)	suaveness (noun)
the quality of being bland and gracious or ingratiating in manner	the quality of being bland and gracious or ingratiating in manner