| unsound |
| atrophied(verb, adjective, deteriorated) |
| blighted(verb, deterioration) |
| collapsed(verb, deteriorated) |
| contaminated(adjective, rotten, polluted, impure, stinking) |
| crumbled(verb, adjective, disintegrated) |
| faded(verb, adjective, hard, old, sour) |
| malodorous(adjective, hard, foul, old, sour) |
| moth-eaten(adjective, mean, hard, poor, last) |
| mouldered(verb, deteriorated) |
| off(adjective, bad, foul, rotten, contaminated) |
| old(adjective, hard, last, sour, stale) |
| ramshackle(adjective, mean, poor, nasty, shabby) |
| regressed(verb, deteriorated) |
| rickety(adjective, mean, poor, bare, shabby) |
| run-down(adjective, mean, poor, nasty, shabby) |
| rusty(adjective, last, original, deterioration, remote) |
| shaky(adjective, shabby, worn, dingy, seedy) |
| weak(adjective, hard, soft, disease, old) |
| withered(verb, deteriorated) |