| hanging by thread(expression, idiom, uncertain, doubtful, critical) |
| hazy(doubtful, shaky, vague, unsure, unlikely) |
| hesitant(uncertain, nervous, doubtful, worried, vague) |
| impugnable(adjective, delicate, uncertain, unstable, doubtful) |
| inconclusive(shaky, unlikely, unpromising) |
| indecisive(adjective, delicate, uncertain, nervous, unstable) |
| indefinite(doubtful, shaky, vague, unsure, unlikely) |
| indeterminate(nervous, doubtful, shaky, vague, insecure) |
| indistinct(doubtful, shaky, vague, unsure, unlikely) |
| jeopardous(adjective, delicate, uncertain, sensitive, capable) |
| jumpy(uncertain, nervous, worried, hesitant, insecure) |
| loaded(adjective, delicate, uncertain, unstable, doubtful) |
| long shot(expression, adjective, delicate, uncertain, sensitive) |
| not a prayer(expression, adjective, idiom, delicate, uncertain) |
| obscure(shaky, unlikely, unpromising) |
| off the deep end(expression, adjective, idiom, delicate, uncertain) |
| on slippery ground(expression, adjective, idiom, delicate, uncertain) |
| on the spot(expression, idiom, delicate, uncertain, doubtful) |
| open(uncertain, nervous, unstable, doubtful, shaky) |
| out on a limb(expression, idiom, delicate, uncertain, doubtful) |