deadlock

US /ˈded.lɑːk/
UK /ˈded.lɑːk/
"deadlock" picture
1.

a situation, typically one involving opposing parties, in which no agreement can be reached because neither party will make concessions

:
The negotiations reached a deadlock over the budget.
The jury was in a deadlock, unable to reach a verdict.
1.

to bring to a deadlock

:
The two sides continued to argue, effectively deadlocking the progress.
Their inability to compromise will deadlock the entire project.