| senile(adjective, uncertain, feeble, hesitant, sluggish) |
| shook up(expression, upset, excited, anxious, nervous) |
| sickly(adjective, weak, thin, delicate, uncertain) |
| top-heavy(unstable, uneven, danger, unequal) |
| tricky(adjective, weak, delicate, uncertain, unstable) |
| troubled(adjective, upset, excited, uncertain, anxious) |
| unassured(adjective, unreliable, insecure, treacherous, incalculable) |
| unconvincing(adjective, weak, thin, frail, likely) |
| unsubstantiated |
| uptight(adjective, upset, excited, uncertain, anxious) |
| vacillate |
| weakly(adjective, adverb, weak, thin, delicate) |
| woozy(adjective, weak, thin, slow, confused) |
| yielding(adjective, unstable, unhealthy, unfit, unsteady) |
| aged(adjective, weak, thin, frail, tottering) |
| aghast(adjective, upset, excited, anxious, nervous) |
| ailing(adjective, weak, thin, delicate, false) |
| alarmed(adjective, upset, uncertain, anxious, awkward) |
| alarming(bad, heavy, insecure, risky, danger) |
| antsy(adjective, upset, excited, anxious, nervous) |