roadblock
n. countable B2 Upper Intermediate US //ˈɹoʊdˌbɫɑk// UK //ɹˈəʊdblɒk// road·block
n. something that stops you from making progress. It can be a physical barrier on a road or a problem that prevents a plan from moving forward.
n. a physical barrier placed across a road to stop traffic; figuratively, any obstacle that prevents progress or the completion of a task.
The police set up a roadblock to check for licenses.
The project hit a major roadblock when the main investor decided to pull out at the last minute.
While the initial proposal was sound, bureaucratic roadblocks within the local government delayed the construction of the new community center for several years.
From road + block.
Usage
Often used with the verbs 'hit', 'encounter', or 'remove' in a figurative sense.