The Collaborative International Dictionary
Vainness
Vainness \Vain"ness\, n. The quality or state of being vain.
Wiktionary
vainness
n. The property of being vain.
Usage examples of "vainness".
I have seen the strange madness of futility fall upon them when a little thing like a spinning dust-cloud, or the hollow crying of a bird, or the moan of the wind through bare branches brought to their gloomy minds the emptiness of life and the vainness of existence.
It was become such a world as did not seem worth a man's while to live in: a world of vainness, of hollowness, of meanness, of nothing but illusions.