| impedance(noun, difficulty, obstacle, obstruction, impediment) |
| impediment(noun, difficulty, burden, cross, hindrance) |
| inhibition(control, check, limit, condition, restraint) |
| interference(noun, difficulty, obstacle, obstruction, impediment) |
| interruption(noun, difficulty, obstacle, obstruction, impediment) |
| intervention(noun, difficulty, obstacle, obstruction, impediment) |
| jam-up(noun, difficulty, obstacle, obstruction, impediment) |
| joker(noun, difficulty, obstacle, obstruction, impediment) |
| limitation(noun, control, check, difficulty, limit) |
| limits(control, check, limit, condition, restraint) |
| load(trouble, concern, strain, burden, cross) |
| lock(noun, control, check, difficulty, limit) |
| manacle |
| mate |
| millstone(noun, trouble, concern, strain, difficulty) |
| misfortune(trouble, concern, strain, burden, weight) |
| mishap(trouble, concern, strain, weight, load) |
| missis |
| missus |
| monkey wrench(noun, expression, difficulty, obstacle, obstruction) |