go down a blind alley

go down a blind alley

To pursue something that ultimately does not lead to a fruitful or satisfactory outcome. After spending years trying to prove his hypothesis but failing to get the results he had hoped for, the physicist feared that he gone down a blind alley.
See also: alley, blind, down, go
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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