| jam-up(noun, difficulty, obstacle, obstruction, impediment) |
| knot(noun, trouble, difficulty, pain, struggle) |
| labor(noun, trouble, difficulty, pain, struggle) |
| laboriousness(noun, trouble, difficulty, pain, struggle) |
| lack(noun, trouble, difficulty, weakness, bar) |
| limits(control, check, limit, condition, restraint) |
| load(noun, disorder, difficulty, weakness, burden) |
| lock(noun, control, check, block, difficulty) |
| mess(noun, trouble, difficulty, pain, struggle) |
| millstone(noun, disorder, difficulty, weakness, burden) |
| minus(noun, trouble, difficulty, weakness, bar) |
| misfortune(noun, trouble, delay, blow, difficulty) |
| monkey wrench(noun, expression, block, difficulty, restraint) |
| muddle(noun, trouble, difficulty, pain, struggle) |
| nuisance(noun, trouble, difficulty, weakness, bar) |
| objection |
| obstructive |
| one small difficulty(expression, idiom) |
| pain(noun, trouble, difficulty, struggle, obstacle) |
| painfulness(noun, trouble, difficulty, pain, struggle) |