immoderateness vs immoderation

immoderateness and immoderation both are nouns.

Word	Noun	Adjective	Verb	Adverb
immoderateness	Yes	No	No	No
immoderation	Yes	No	No	No

As nouns, immoderateness and immoderation are synonyms defined as:

immoderateness and immoderation: the quality of being excessive and lacking in moderation

immoderateness (noun)	immoderation (noun)
the quality of being excessive and lacking in moderation	the quality of being excessive and lacking in moderation