retentivity vs retentiveness

retentivity and retentiveness both are nouns.

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

As nouns, retentivity and retentiveness are synonyms defined as:

Other synonyms of retentivity include retention.

As nouns, retentivity and retentiveness are synonyms defined as:

retentivity and retentiveness: the property of retaining possessions that have been acquired

As nouns, retentivity and retentiveness are synonyms defined as:

retentivity and retentiveness: the power of retaining and recalling past experience

Other synonyms of retentivity include memory, retention.

retentivity (noun)	retentiveness (noun)
the power of retaining liquid	the property of retaining possessions that have been acquired
the property of retaining possessions that have been acquired	the power of retaining liquid
the power of retaining and recalling past experience	the power of retaining and recalling past experience