| painfulness(noun, adversity, complication, complexity, intricacy) |
| pickle(noun, adversity, complication, complexity, intricacy) |
| predicament(noun, adversity, complication, complexity, intricacy) |
| profoundness |
| profundity |
| puzzling complexity(expression, idiom) |
| quagmire(noun, adversity, complication, complexity, intricacy) |
| quandary(noun, adversity, complication, complexity, intricacy) |
| scrape(noun, adversity, complication, complexity, intricacy) |
| snag(noun, adversity, complication, complexity, intricacy) |
| stew(noun, adversity, complication, complexity, intricacy) |
| strain(noun, adversity, complication, complexity, intricacy) |
| strait(noun, adversity, complication, complexity, intricacy) |
| strenuousness(noun, adversity, complication, complexity, intricacy) |
| struggle(noun, adversity, complication, complexity, intricacy) |
| stumbling block(noun, expression, adversity, complication, complexity) |
| subtlety |
| torsion |
| tribulation(noun, adversity, complication, complexity, intricacy) |
| trickiness(noun, adversity, complication, complexity, intricacy) |