| knottiness(noun, difficulty) |
| lustiness(noun, control, force, power, strength) |
| mastery(noun, control, force, power, strength) |
| mess(noun, trouble, difficulty, pain, struggle) |
| misfortune(noun, trouble, difficulty, pain, struggle) |
| moxie(noun, force, power, strength, ability) |
| muddle(noun, trouble, difficulty, pain, struggle) |
| muscle(noun, control, force, power, strength) |
| obstacle(noun, trouble, difficulty, pain, struggle) |
| obstruction(noun, trouble, difficulty, pain, struggle) |
| oppressiveness(noun, difficulty) |
| ordeal(noun, difficulty) |
| pain(noun, trouble, difficulty, struggle, obstacle) |
| painfulness(noun, trouble, difficulty, pain, struggle) |
| peppiness(noun, control, force, power, strength) |
| perplexity(noun, trouble, difficulty, pain, struggle) |
| pickle(noun, trouble, difficulty, pain, struggle) |
| powerfulness(noun, control, force, power, strength) |
| predicament(noun, trouble, difficulty, pain, struggle) |
| prowess(noun, control, force, power, strength) |