susceptibility vs susceptibleness

susceptibility and susceptibleness both are nouns.

Word	Noun	Adjective	Verb	Adverb
susceptibility	Yes	No	No	No
susceptibleness	Yes	No	No	No

As nouns, susceptibility and susceptibleness are synonyms defined as:

susceptibility and susceptibleness: the state of being susceptible; easily affected

susceptibility (noun)	susceptibleness (noun)
the state of being susceptible; easily affected	the state of being susceptible; easily affected