| doddering(adjective, weak, thin, frail, tottering) |
| explosive(adjective, upset, insecure, risky, danger) |
| fickle(adjective, weak, uncertain, unstable, doubtful) |
| indecisive(adjective, weak, thin, delicate, uncertain) |
| sensitive(adjective, weak, delicate, uncertain, anxious) |
| skittish(adjective, anxious, nervous, shy, worried) |
| suspicious(adjective, informal, uncertain, anxious, awkward) |
| ticklish(adjective, upset, delicate, uncertain, anxious) |
| touch-and-go(adjective, bad, heavy, risky, unlikely) |
| tremulant(adjective, repetition, riproaring, grinding, tremulous) |
| twittery(adjective, repetition, riproaring, grinding, tremulous) |
| unbalanced(adjective, unstable, ill, insane, unhealthy) |
| unclear(adjective, uncertain, nervous, doubtful, dubious) |
| unsupported(adjective, doubtful, questionable) |
| debilitated(adjective, weak, thin, delicate, uncertain) |
| decayed(adjective, shabby, worn, dingy, seedy) |
| dicey(adjective, delicate, uncertain, unstable, doubtful) |
| fretful(adjective, upset, excited, anxious, awkward) |
| lame(adjective, weak, weakness, thin, delicate) |
| palsied(adjective, weakness, uncertain, nervous, unstable) |