| determinant(noun, issue, significance, fact) |
| disadvantage(noun, difficulty, issue, problem) |
| hiccup(noun, difficulty, issue, problem) |
| hurdle(noun, difficulty, issue, problem) |
| poser(noun, difficulty, issue, problem) |
| setback(noun, difficulty, issue, problem) |
| sticking-point(noun, difficulty, issue, problem) |
| argument(noun, cause, importance, basement) |
| bases(noun, cause, importance, basement) |
| basis(noun, cause, importance, basement) |
| evidence(noun, cause, importance, basement) |
| grounds(noun, cause, importance, basement) |
| reason(noun, cause, importance, basement) |
| root(noun, cause, importance, basement) |
| substrata(noun, cause, importance, basement) |
| attribute(noun, issue, determination, solution) |
| case(noun, difficulty, situation, fact) |
| circumstance(noun, difficulty, situation, fact) |
| predicament(noun, difficulty, situation, fact) |
| state(noun, difficulty, situation, fact) |