The quality of being lifelike; simulation of real life.(noun)
The Century Dictionary (Public Domain)
Use "lifelikeness" in a sentence
"It must feel exactly like life, must exhibit not, as he puts it, "lifelikeness" but "lifeness: life on the page.""
"Only one remained and that was Judas, whose baseness no citizen of Milan seemed to wear on his face, and to whom Leonardo began to despair of giving the absolute lifelikeness that was vital to his conception."
"Even when the quality to be valued is objectively there—coherence, clarity, accuracy or lifelikeness, what have you—its achievement is distinguished from the recognition of it, and from the even later claim that the quality is valuable."