| treacherous(adjective, unreliable, insecure, dangerous, incalculable) |
| unsettled(adjective, upset, weak, delicate, uncertain) |
| anxious(adjective, upset, excited, uncertain, nervous) |
| apprehensive(adjective, upset, informal, excited, uncertain) |
| dangerous(adjective, adverb, open, delicate, uncertain) |
| dilapidated |
| shaking(adjective, upset, excited, anxious, nervous) |
| undependable(adjective, uncertain, nervous, unstable, feeble) |
| wavering(adjective, upset, weak, delicate, uncertain) |
| wonky(adjective, unreliable, insecure, treacherous, incalculable) |
| delicate(adjective, weak, slight, thin, uncertain) |
| insubstantial(adjective, weak, slight, thin, delicate) |
| loose |
| quaking(adjective, unstable, unsteady, trembling, wobbly) |
| suspect(adjective, weak, informal, uncertain, sensitive) |
| tense(adjective, upset, excited, anxious, awkward) |
| aquiver(adjective, unstable, repetition, unsteady, trembling) |
| broken-down(adjective, shabby, worn, unsteady, dingy) |
| crumbling(adjective, shabby, danger, worn, dingy) |
| diffident(uncertain, fear, nervous, shy, worried) |