ಅರ್ಥ : A street with only one way in or out.
ಸಮಾನಾರ್ಥಕ : cul de sac, dead-end street, impasse
ಅರ್ಥ : (figurative) a course of action that is unproductive and offers no hope of improvement.
ಉದಾಹರಣೆ :
All the clues led the police into blind alleys.
So far every road that we've been down has turned out to be a blind alley.