falseness vs hollowness

falseness and hollowness both are nouns.

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

As nouns, falseness and hollowness are synonyms defined as:

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

Other synonyms of falseness include insincerity.

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