| tentative(adjective, uncertain, doubtful, vague, unsure) |
| threatening(adjective, bad, heavy, uncertain, risky) |
| tottering(adjective, change, strong, weak, unsettled) |
| unhealthy(adjective, delicate, uncertain, sensitive, unstable) |
| unsubstantial |
| vacillant |
| wonky(adjective, unreliable, insecure, treacherous, incalculable) |
| acute(adjective, understanding, keen, fine, sensible) |
| arguable(adjective, uncertain, tricky, sticky, challenging) |
| borderline(adjective, uncertain, unstable, doubtful, shaky) |
| changeable(adjective, delicate, uncertain, doubtful, vague) |
| dependent |
| frail(adjective, unstable, shaky, vulnerable, dangerous) |
| harmful(adjective, risky, dangerous, unsafe) |
| hopeless(adjective, unreliable, insecure, treacherous, incalculable) |
| inconstant(adjective, delicate, doubtful, vague, changeable) |
| irresolute(adjective, doubtful, vague, changeable, unsure) |
| jeopardous(adjective, delicate, uncertain, sensitive, capable) |
| mischievous(adjective, wicked, devilish) |
| moot(adjective, uncertain, tricky, sticky, challenging) |