| trouble(noun, disorder, difficulty, confusion, struggle) |
| adversity(noun, difficulty, complication, intricacy, complicatedness) |
| awkwardness(noun, trouble, disorder, difficulty, confusion) |
| coil |
| complex |
| dilemma(noun, trouble, disorder, difficulty, confusion) |
| esoterica |
| hardship(noun, adversity, complication, intricacy, complicatedness) |
| insight(noun, wisdom, penetration) |
| knot(noun, difficulty, mess, tangle, adversity) |
| laboriousness(noun, adversity, complication, intricacy, complicatedness) |
| multifariousness(noun, variety) |
| mystery |
| obstacle(noun, difficulty, adversity, complication, snag) |
| predicament(noun, trouble, disorder, difficulty, confusion) |
| quandary(noun, trouble, disorder, difficulty, confusion) |
| trickiness(noun, difficulty, adversity, complication, intricacy) |
| uncertainty(noun, difficulty, perplexity, bewilderment, puzzlement) |
| wearying(noun, difficulty) |
| Gordian knot(expression, trouble, difficulty, mess) |