slanderousness vs falseness

slanderousness and falseness both are nouns.

Word	Noun	Adjective	Verb	Adverb
slanderousness	Yes	No	No	No
falseness	Yes	No	No	No

As nouns, falseness is a hypernym of slanderousness; that is, falseness is a word with a broader meaning than slanderousness:

slanderousness: The property of being both untrue and harmful to a reputation.
falseness: the quality of not being open or truthful; deceitful or hypocritical

Other hypernyms of slanderousness include hollowness, insincerity.

slanderousness (noun)	falseness (noun)
The property of being both untrue and harmful to a reputation.	the quality of not being open or truthful; deceitful or hypocritical
	unfaithfulness by virtue of being unreliable or treacherous
	the state of being false or untrue