Cul-de-sac.
A short street which is not a thoroughfare; a cul de sac. dead-end
A situation in which no progress can be made:; SYN. impasse, stalemate, standstill. dead-lock
1. A dead end.
2. A disagreement in which no solution seems possible.
3. Deadlock; blind alley.
1. An immovable mass of logs blocking a river.
2. Any stoppage attributable to unusual activity
Drawing position in chess: any of a player's possible moves would place his king in check.