| tottering(adjective, change, strong, weak, unstable) |
| touch-and-go(adjective, delicate, uncertain, sensitive, unsettled) |
| touchy(adjective, delicate, informal, uncertain, nervous) |
| unconvinced(adjective, uncertain, nervous, doubtful, shaky) |
| unfixed(adjective, doubtful, vague, hesitant, unsure) |
| unnerved |
| ambiguous(adjective, delicate, uncertain, unstable, doubtful) |
| arguable(adjective, uncertain) |
| borderline(adjective, delicate, uncertain, nervous, unstable) |
| brittle |
| confused(noun, adjective, uncertain) |
| contestable(adjective, uncertain) |
| controversial(adjective, uncertain) |
| decrepit(adjective, weak, delicate, false, unstable) |
| defective(adjective, ill, unhealthy, frail) |
| defenseless(adjective, weak, vulnerable, dangerous, unprotected) |
| difficult(adjective, risky, dangerous, unsafe, hazardous) |
| disputable(adjective, uncertain) |
| distrustful(adjective, uncertain, nervous, shy, doubtful) |
| dodgy(adjective, untrustworthy, risky, dangerous, treacherous) |