| lemon(noun, defeat, blow, failure, mistake) |
| melancholy(noun, depression, sadness, gloom, unhappiness) |
| misanthropy |
| miscalculation(noun, defeat, blow, failure, mistake) |
| mischance(noun, defeat, blow, failure, mistake) |
| mishap(noun, defeat, blow, failure, mistake) |
| mistake(noun, defeat, blow, failure, disaster) |
| mortification(disappointment, letdown, disenchantment) |
| need(noun, depression, sadness, gloom, unhappiness) |
| nonfulfillment(hindrance, disappointment, annoyance, prevention, blocking) |
| nonsuccess(hindrance, disappointment, annoyance, letdown, prevention) |
| object |
| obstacle(noun, defeat, blow, failure, mistake) |
| obstruction(hindrance, disappointment, annoyance, prevention, blocking) |
| odium |
| ordeal(noun, depression, sadness, gloom, unhappiness) |
| pain(noun, depression, sadness, gloom, unhappiness) |
| painfulness |
| pang(noun, depression, sadness, gloom, unhappiness) |
| penury(noun, depression, sadness, gloom, unhappiness) |