imperishability vs imperishableness

imperishability and imperishableness both are nouns.

Word	Noun	Adjective	Verb	Adverb
imperishability	Yes	No	No	No
imperishableness	Yes	No	No	No

As nouns, imperishability and imperishableness are synonyms defined as:

imperishability and imperishableness: the property of being resistant to decay

Other synonyms of imperishability include imperishingness.

imperishability (noun)	imperishableness (noun)
the property of being resistant to decay	the property of being resistant to decay