vainness

n.

无益；

Vainness of a century of words
From V./Vainness to Paola/Possibility : Another World's Intrusion into Questers of Thomas Pynchon's V.
For Aziza and Others: The Vainness of Vanity
AT. TWILIGHT OF REALITY - Krattera | Letras.com
Method for forming a liquid film on a substrate
Image forming apparatus having control unit for rewinding operation of photosensitive recording medium
Le mal et le pire : de Schopenhauer à Cioran
Method for forming a liquid film on a substrate
Henry V
"But to be learned is good if . . ."