imminentness vs impendence

imminentness and impendence both are nouns.

Word	Noun	Adjective	Verb	Adverb
imminentness	Yes	No	No	No
impendence	Yes	No	No	No

As nouns, imminentness and impendence are synonyms defined as:

imminentness and impendence: the state of being imminent and liable to happen soon

Other synonyms of imminentness include forthcomingness, imminence, imminency, impendency.

imminentness (noun)	impendence (noun)
the state of being imminent and liable to happen soon	the state of being imminent and liable to happen soon