handwriting vs readability

handwriting and readability both are nouns.

Word	Noun	Adjective	Verb	Adverb
handwriting	Yes	No	No	No
readability	Yes	No	No	No

handwriting (noun)	readability (noun)
the activity of writing by hand	the quality of written language that makes it easy to read and understand
something written by hand	a quality of writing (print or handwriting) that can be easily read