actuality vs realness

actuality and realness both are nouns.

Word	Noun	Adjective	Verb	Adverb
actuality	Yes	No	No	No
realness	Yes	No	No	No

As nouns, realness is a hyponym of actuality; that is, realness is a word with a more specific, narrower meaning than actuality:

Other hyponyms of actuality include entelechy, genuineness, realism, reality, reality, the true, trueness, truth, verity.

actuality (noun)	realness (noun)
the state of actually existing objectively	the state of being actual or real