| tumbledown(weak, unstable, unsettled, unsteady, trembling) |
| twitchy |
| unfirm(weak, unstable, unsettled, unsteady, trembling) |
| unmanly(shy, worried, afraid, apprehensive, scared) |
| unsettled(weak, unstable, unsteady, trembling, wobbly) |
| unsound(weak, unstable, unsettled, unsteady, trembling) |
| unstable(adjective, weak, unsettled, unsteady, trembling) |
| unsure(weak, unstable, unsettled, unsteady, trembling) |
| vacillating(weak, unstable, unsettled, unsteady, trembling) |
| vibrating |
| weak(adjective, unstable, unsettled, unsteady, trembling) |
| weak-kneed(shy, worried, afraid, apprehensive, scared) |
| yellow(shy, worried, afraid, apprehensive, scared) |
| yielding(weak, unstable, unsettled, unsteady, trembling) |
| afraid(shy, worried, apprehensive, scared, alarmed) |
| alarmed(shy, worried, afraid, apprehensive, scared) |
| algific(shaky, riproaring, grinding) |
| anile |
| antarctic(shaky, riproaring, grinding) |
| asp |