precipitousness vs hastiness

precipitousness and hastiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
precipitousness	Yes	No	No	No
hastiness	Yes	No	No	No

As nouns, hastiness is a hypernym of precipitousness; that is, hastiness is a word with a broader meaning than precipitousness:

precipitousness: the quality of happening with headlong haste or without warning
hastiness: overly eager speed (and possible carelessness)

Other hypernyms of precipitousness include haste, hurriedness, hurry, precipitation.

precipitousness (noun)	hastiness (noun)
the property possessed by a slope that is very steep	hasty impulsiveness
the quality of happening with headlong haste or without warning	overly eager speed (and possible carelessness)