overmuchness vs superabundance

overmuchness and superabundance both are nouns.

Word	Noun	Adjective	Verb	Adverb
overmuchness	Yes	No	No	No
superabundance	Yes	No	No	No

As nouns, overmuchness and superabundance are synonyms defined as:

overmuchness and superabundance: a quantity that is more than what is appropriate

Other synonyms of overmuchness include overabundance, overmuch.

overmuchness (noun)	superabundance (noun)
a quantity that is more than what is appropriate	a quantity that is more than what is appropriate