brittleness vs crispness

brittleness and crispness both are nouns.

Word	Noun	Adjective	Verb	Adverb
brittleness	Yes	No	No	No
crispness	Yes	No	No	No

As nouns, brittleness and crispness are synonyms defined as:

Other synonyms of brittleness include crispiness.

brittleness (noun)	crispness (noun)
firm but easily broken	firm but easily broken
	a pleasing firmness and freshness
	an expressive style that is direct and to the point