| restriction(noun, act, control, area, force) |
| restraint(noun, move, action, trouble, act) |
| reservation(noun, control, check, limit, weakness) |
| hindrance(noun, trouble, control, block, difficulty) |
| curb(noun, control, force, check, power) |
| obstruction(noun, check, block, difficulty, curb) |
| deficiency(noun, trouble, difficulty, weakness) |
| taboo(noun, weakness, restraint, ban) |
| fault(noun, trouble, difficulty, weakness) |
| impediment(noun, trouble, block, difficulty, curb) |
| injunction(noun, weakness, condition, restraint) |
| stricture(noun, control, limit, weakness) |
| drawback(noun, trouble, benefit, catch, difficulty) |
| handicap(noun, trouble, control, difficulty, limit) |
| defect(noun, trouble, difficulty, weakness) |
| imperfection(noun, trouble, difficulty, weakness) |
| shortcoming(noun, benefit, difficulty, weakness) |
| barrier(noun, control, block, difficulty, limit) |
| inadequacy(noun, trouble, difficulty, weakness) |
| inhibition(noun, control, check, curb, limit) |