a fool's errand

an attempt to do something that has no chance of success Billions of dollars have been spent on long-range weather forecasting, but it's a fool's errand.

Common Names:

Name	Pronounced	Usage
Granville	GRAN-vil	English
FİRuze	-	Turkish
Gottfried	GAWT-freet	German
Brain	[brein]
Miles	['mailz]
Henrike	hen-REE-kə (German)	German, Swedish, Norwegian, Danish