suavity vs smoothness

suavity and smoothness both are nouns.

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

As nouns, suavity and smoothness are synonyms defined as:

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

Other synonyms of suavity include blandness, suaveness.

suavity (noun)	smoothness (noun)
the quality of being bland and gracious or ingratiating in manner	a texture without roughness; smooth to the touch
	the quality of having a level and even surface
	the quality of being free from errors or interruptions
	the quality of being bland and gracious or ingratiating in manner
	powerful and effective language