| snag(noun, trouble, difficulty, weakness) |
| block(noun, weakness, burden, restraint) |
| failing(noun, trouble, difficulty, weakness) |
| interdiction(noun, veto, refusal, prohibition) |
| lack(noun, trouble, difficulty, weakness) |
| proscription(noun, ban, veto, refusal) |
| weakness(noun, trouble, difficulty, restraint) |
| ban(noun, restraint, veto, permitted) |
| obstacle(noun, trouble, difficulty, curb) |
| prohibition(noun, restraint, ban, veto) |
| regulation(noun, control, force, power, rule) |
| burden(noun, trouble, difficulty, weakness) |
| detriment(noun, trouble, difficulty, weakness) |
| difficulty(noun, trouble, fault, failing) |
| disability(noun, trouble, difficulty, weakness) |
| embargo(noun, restraint, veto, restriction) |
| fly in the ointment(expression, idiom, trouble, difficulty) |
| hurdle(noun, difficulty, curb, restraint) |
| interdict(noun, restraint, ban, veto) |
| no-no(control, check, refusal, permitted) |