impendency vs forthcomingness

impendency and forthcomingness both are nouns.

Word	Noun	Adjective	Verb	Adverb
impendency	Yes	No	No	No
forthcomingness	Yes	No	No	No

As nouns, impendency and forthcomingness are synonyms defined as:

impendency and forthcomingness: the state of being imminent and liable to happen soon

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

impendency (noun)	forthcomingness (noun)
the state of being imminent and liable to happen soon	the state of being imminent and liable to happen soon