adeptness vs quickness

adeptness and quickness both are nouns.

Word	Noun	Adjective	Verb	Adverb
adeptness	Yes	No	No	No
quickness	Yes	No	No	No

As nouns, adeptness and quickness are synonyms defined as:

adeptness and quickness: skillful performance or ability without difficulty

Other synonyms of adeptness include adroitness, deftness, facility.

adeptness (noun)	quickness (noun)
skillful performance or ability without difficulty	a rate that is rapid
	intelligence as revealed by an ability to give correct responses without delay
	skillful performance or ability without difficulty