precipitateness vs precipitance

precipitateness and precipitance both are nouns.

Word	Noun	Adjective	Verb	Adverb
precipitateness	Yes	No	No	No
precipitance	Yes	No	No	No

As nouns, precipitateness and precipitance are synonyms defined as:

precipitateness and precipitance: the quality of happening with headlong haste or without warning

Other synonyms of precipitateness include abruptness, precipitancy, precipitousness, suddenness.

precipitateness (noun)	precipitance (noun)
the quality of happening with headlong haste or without warning	the quality of happening with headlong haste or without warning