A situation in which neither group involved in an argument can win or gain an advantage and no action can be taken. (Cambridge Dictionary)
A mass of floating logs that block a river. (Cambridge Dictionary)
Deadlock, Impasse. (Merriam – Webster)
To break the logjam means to change or deal with a difficult situation which has existed for a long time. (Collins Dictionary)
A deadlock, standstill. (Collins Dictionary)
Blockage caused by the crowding together of a number of logs floating in a river. (Collins Dictionary)
Pearl River logjam on Louisiana-Mississippi border to be cleared.
Logjam for Paris climate ‘rule book’ as end-2018 deadline looms.
Butting Heads Over a Key Decision? How to Break the Logjam.