| unsubstantial(adjective, weak, slight, weakness, thin) |
| insecure(adjective, weak, unstable, unsettled, shaky) |
| insubstantial(adjective, weak, slight, weakness, thin) |
| rachitic(adjective, unsound) |
| slight(adjective, dull, light, thin, delicate) |
| delicate(adjective, dull, mean, bad, light) |
| jerry-built(adjective, weak, unstable, unsettled, shaky) |
| tottery(adjective, weak, unstable, unsettled, flexible) |
| crumbling(adjective, shabby, worn, dingy, seedy) |
| debilitated(adjective, mean, bad, weak, delicate) |
| derelict(adjective, shaky, unsound, shabby, unsteady) |
| shabby(adjective, mean, shape, feeble, dingy) |
| unsure(adjective, weak, unstable, unsettled, shaky) |
| wonky(adjective, shaky, unsteady) |
| dangerous(adjective, unstable, ill, shaky, insane) |
| debile |
| faint(adjective, uncertain, feeble, shaky, hesitant) |
| loose(adjective, unstable, vulnerable, dangerous, unprotected) |
| sapless |
| sick(adjective, mean, weak, healthy, ill) |