| hot water(noun, expression, trouble, fix, worry) |
| hurdle(noun, difficulty, disagreement, hindrance, disadvantage) |
| idea(noun, point, line, issue, material) |
| imbroglio |
| inadequacy(noun, trouble, difficulty, weakness, bar) |
| incorrigible |
| infirmity(noun, disorder, difficulty, weakness, burden) |
| interference(noun, difficulty, hindrance, obstacle, impediment) |
| knotty point(expression, idiom, inquiry) |
| maladjusted |
| misfortune(noun, trouble, worry, difficulty, distress) |
| mishap(noun, bug, malfunction, holdup, snag) |
| molestation(trouble, strain, difficulty, aggravation, inconvenience) |
| motion(point, issue, idea, material, matter) |
| motive(point, line, issue, idea, material) |
| need(noun, depression, sadness, gloom, unhappiness) |
| nonplus |
| ordeal(noun, difficulty, distress, burden, depression) |
| persecution(trial, suffering, misfortune) |
| pest(noun, trouble, bother, worry, concern) |