hollowness vs falseness

hollowness and falseness both are nouns.

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

As nouns, hollowness and falseness are synonyms defined as:

hollowness and falseness: the quality of not being open or truthful; deceitful or hypocritical

Other synonyms of hollowness include insincerity.

hollowness (noun)	falseness (noun)
the property of having a sunken area	the quality of not being open or truthful; deceitful or hypocritical
the quality of not being open or truthful; deceitful or hypocritical	unfaithfulness by virtue of being unreliable or treacherous
the state of being hollow: having an empty space within	the state of being false or untrue