powderiness vs fineness

powderiness and fineness both are nouns.

Word	Noun	Adjective	Verb	Adverb
powderiness	Yes	No	No	No
fineness	Yes	No	No	No

As nouns, powderiness and fineness are synonyms defined as:

powderiness (noun)	fineness (noun)
having a very fine texture	the quality of being beautiful and delicate in appearance
	the property of being very narrow or thin
	having a very fine texture
	the quality of being very good indeed