fussiness vs elaborateness

fussiness and elaborateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
fussiness	Yes	No	No	No
elaborateness	Yes	No	No	No

As nouns, elaborateness is a hypernym of fussiness; that is, elaborateness is a word with a broader meaning than fussiness:

fussiness: unnecessary elaborateness in details
elaborateness: an ornate appearance; being elaborately (even excessively) decorated

Other hypernyms of fussiness include ornateness.

fussiness (noun)	elaborateness (noun)
unnecessary elaborateness in details	marked by elaborately complex detail
an irritable petulant feeling	an ornate appearance; being elaborately (even excessively) decorated