1. A traffic jam in which no vehicular movement is possible, especially one caused by the blockage of key intersections within a grid of streets.
2. A complete lack of movement or progress resulting in a backup or stagnation:
“the political gridlock that prevented … the President and Congress from moving expeditiously to cut the budget”
gridlock – Chiefly US
1. (Engineering / Automotive Engineering) obstruction of urban traffic caused by queues of vehicles forming across junctions and causing further queues to form in the intersecting streets
2. a point in a dispute at which no agreement can be reached; deadlock political gridlock
1. to block or obstruct (an area)