gridlocked

/ˈɡrɪdˌlɑkt/
adjective
  1. So blocked with traffic that no vehicles can move in any direction.
    • The downtown streets were gridlocked during the parade.
    • The highway became gridlocked after the accident.
    • We were stuck in a gridlocked intersection for over an hour.
  2. Stuck or unable to make progress because of opposing forces or lack of agreement.
    • The negotiations remained gridlocked as neither side would compromise.
    • The government is gridlocked by partisan fighting.
    • Our project is gridlocked until the manager approves the budget.
Antonyms