voluptuousness vs curvaceousness

voluptuousness and curvaceousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
voluptuousness	Yes	No	No	No
curvaceousness	Yes	No	No	No

As nouns, voluptuousness and curvaceousness are synonyms defined as:

voluptuousness and curvaceousness: the quality of having a well-rounded body

Other synonyms of voluptuousness include shapeliness.

voluptuousness (noun)	curvaceousness (noun)
the quality of having a well-rounded body	the quality of having a well-rounded body
the property of being lush and abundant and a pleasure to the senses
the quality of being attractive and exciting (especially sexually exciting)