graspability vs attainableness

graspability and attainableness both are nouns.

Word	Noun	Adjective	Verb	Adverb
graspability	Yes	No	No	No
attainableness	Yes	No	No	No

As nouns, attainableness is a hypernym of graspability; that is, attainableness is a word with a broader meaning than graspability:

graspability: The quality of being able to be understood or comprehended; understandability.
attainableness: the state of being achievable

Other hypernyms of graspability include achievability, attainability.

graspability (noun)	attainableness (noun)
The quality of being able to be understood or comprehended; understandability.	the state of being achievable