realistic vs living

realistic is not a noun while living is a noun.

Word	Noun	Adjective	Verb	Adverb
realistic	No	Yes	No	No
living	Yes	Yes	No	No

realistic (noun)	living (noun)
	the experience of being alive; the course of human events and activities
	people who are still living
	the financial means whereby one lives
	the condition of living or the state of being alive

realistic (adjective)	living (adjective)
aware or expressing awareness of things as they really are	pertaining to living persons
of or relating to the philosophical doctrine of realism	(informal) absolute
representing what is real; not abstract or ideal	still in existence
	(used of minerals or stone) in its natural state and place; not mined or quarried
	true to life; lifelike
	still in active use