quickness vs adeptness

quickness and adeptness both are nouns.

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

As nouns, quickness and adeptness are synonyms defined as:

quickness and adeptness: skillful performance or ability without difficulty

Other synonyms of quickness include adroitness, deftness, facility.

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