hurriedness vs fastness

hurriedness and fastness both are nouns.

Word	Noun	Adjective	Verb	Adverb
hurriedness	Yes	No	No	No
fastness	Yes	No	No	No

As nouns, fastness is a hypernym of hurriedness; that is, fastness is a word with a broader meaning than hurriedness:

Other hypernyms of hurriedness include speed, swiftness.

hurriedness (noun)	fastness (noun)
overly eager speed (and possible carelessness)	a strongly fortified defensive structure
	a rate (usually rapid) at which something happens
	the quality of being fixed in place as by some firm attachment