| dereliction(noun, decline, wrong, weakness, burden) |
| deteriorating(adjective, weakening, lessening, worsening, falling) |
| flunk(noun, verb) |
| flunking(noun, verb) |
| frail(adjective, weak, thin, delicate, ill) |
| infirm(adjective, weak, thin, delicate, ill) |
| lack(verb, break, trouble, check, difficulty) |
| lame(adjective, weak, poor, thin, delicate) |
| miscarriage(noun, decline, ruin, defeat, neglect) |
| missing(noun, verb, adjective, slip, short) |
| mistake(noun, slip, weakness, crack, failure) |
| neglect(noun, decline, slip, weakness, failure) |
| omission(noun, decline, wrong, slip, weakness) |
| retrograde(mean, low, immoral, debased, deteriorated) |
| sinking(adjective, mean, low, last, immoral) |
| worsening(noun, adjective, drop, fall, failure) |
| break(noun, verb, slip, weakness, crack) |
| bug(noun, weakness, crack, fault, lack) |
| crumbling(adjective, decline, ruin, collapse, deterioration) |
| damage(noun, defeat, affection, deprivation) |