| shaky(adjective, weak, slight, thin, delicate) |
| wobbly(adjective, mean, bad, weak, slight) |
| decrepit(adjective, weak, slight, delicate, uncertain) |
| unsteady(adjective, weak, uncertain, unstable) |
| feeble(adjective, mean, bad, weak, slight) |
| weak(adjective, mean, bad, strong, slight) |
| frail(adjective, mean, bad, weak, slight) |
| infirm(adjective, mean, bad, weak, slight) |
| fragile(adjective, dull, light, weak, slight) |
| rocky(adjective, mean, bad, weak, delicate) |
| unsound(adjective, weak, slight, thin, delicate) |
| unsubstantial(adjective, weak, slight, weakness, thin) |
| insubstantial(adjective, weak, slight, weakness, thin) |
| delicate(adjective, dull, mean, bad, light) |
| debilitated(adjective, mean, bad, weak, delicate) |
| dangerous(adjective, unstable, shaky, insane) |
| sick(adjective, mean, weak, healthy) |
| imperfect(adjective, mean, weak, down) |
| unreliable(adjective, unstable, shaky, unhealthy) |
| ailing(adjective, mean, weak, down) |