quickness vs deftness

quickness and deftness both are nouns.

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

As nouns, quickness and deftness are synonyms defined as:

quickness and deftness: skillful performance or ability without difficulty

Other synonyms of quickness include adeptness, adroitness, facility.

quickness (noun)	deftness (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