retentiveness vs impermeability

retentiveness and impermeability both are nouns.

Word	Noun	Adjective	Verb	Adverb
retentiveness	Yes	No	No	No
impermeability	Yes	No	No	No

As nouns, impermeability is a hypernym of retentiveness; that is, impermeability is a word with a broader meaning than retentiveness:

retentiveness: the power of retaining liquid
impermeability: the property of something that cannot be pervaded by a liquid

Other hypernyms of retentiveness include impermeableness.

retentiveness (noun)	impermeability (noun)
the property of retaining possessions that have been acquired	the property of something that cannot be pervaded by a liquid
the power of retaining liquid
the power of retaining and recalling past experience