| puissance(noun, control, force, power, strength) |
| punch(noun, control, force, power, strength) |
| quagmire(noun, trouble, difficulty, pain, struggle) |
| qualification(noun, force, power, strength, ability) |
| qualifiedness(noun, control, force, power, strength) |
| quandary(noun, trouble, difficulty, pain, struggle) |
| relentlessness |
| rigor |
| rigour |
| roughness(noun, difficulty) |
| scrape(noun, trouble, difficulty, pain, struggle) |
| severity(noun, difficulty) |
| sinew(noun, control, force, power, strength) |
| snag(noun, trouble, difficulty, pain, struggle) |
| steam(noun, control, force, power, strength) |
| stew(noun, trouble, difficulty, pain, struggle) |
| strain(noun, trouble, difficulty, pain, struggle) |
| strait(noun, trouble, difficulty, pain, struggle) |
| stressfulness(noun, difficulty) |
| strong arm(noun, expression, control, force, power) |