| embolism(noun, mass, hindrance, lump, accumulation) |
| blockade(noun, hindrance, barrier, closure) |
| closure(noun, hindrance, obstruction, stoppage, barrier) |
| clot(noun, mass, lump, accumulation, sediment) |
| obstruction(noun, hindrance, stoppage, barrier, closure) |
| bar(noun, obstruction, stoppage, barrier, blockade) |
| barrier(noun, obstruction, stoppage, blockade, barricade) |
| clog(noun, obstruction, stoppage, barrier, blockade) |
| constipation |
| infarction(noun, obstruction, stoppage, barrier, closure) |
| stoppage(noun, hindrance, obstruction, barrier, blockade) |
| blank wall(noun, expression, obstruction, stoppage, barrier) |
| blind alley(expression, idiom, closure) |
| coagulum(noun, mass, lump, accumulation, clump) |
| curd(noun, mass, lump, accumulation, clump) |
| grume(noun, mass, lump, accumulation, clump) |
| hindrance(noun, hindrance, obstruction, stoppage, barrier) |
| impediment(noun, obstruction, stoppage, barrier, blockade) |
| obstacle(noun, obstruction, stoppage, barrier, blockade) |
| stop(noun, obstruction, stoppage, barrier, blockade) |