salacity vs salaciousness

salacity and salaciousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
salacity	Yes	No	No	No
salaciousness	Yes	No	No	No

As nouns, salacity and salaciousness are synonyms defined as:

Other synonyms of salacity include bawdiness, lewdness, obscenity.

salacity (noun)	salaciousness (noun)
the trait of behaving in an obscene manner	the trait of behaving in an obscene manner