Noun

(wikipedia impasse) (en noun)

a road with no exit; a cul-de-sac

a deadlock or stalemate situation in which no progress can be made

* {{quote-book

, year=1960 , author= , title=(Jeeves in the Offing) , section=chapter XIV , passage=“It seems to me the thing's an impasse . French expression,” I explained, “meaning that we're stymied good and proper with no hope of finding a formula.”}}

* 2010 ,

"Young man, this town is at a bit of an impasse . If you have any suggestion that might help, now would be the time to voice it."