immediateness vs quickness

immediateness and quickness both are nouns.

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

As nouns, quickness is a hypernym of immediateness; that is, quickness is a word with a broader meaning than immediateness:

Other hypernyms of immediateness include celerity, rapidity, rapidness, speediness.

immediateness (noun)	quickness (noun)
the quickness of action or occurrence	a rate that is rapid
lack of an intervening or mediating agency	intelligence as revealed by an ability to give correct responses without delay
	skillful performance or ability without difficulty