| erratic(adjective, change, unfixed, unsustainable) |
| erratical(adjective, change, unfixed, unsustainable) |
| fluctuating(adjective, change, unfixed, unsustainable) |
| fragile(adjective, change, unfixed, unsustainable) |
| frail(adjective, unstable, doubtful, unsteady) |
| groggy(adjective, change, unfixed, unsustainable) |
| iffy(adjective, dark, doubt, suspicious, doubted) |
| imbalanced(adjective, unsteady, sandy, nonstable) |
| indefinite(adjective, quality, doubt, nonstable) |
| infirm(adjective, change, unfixed, unsustainable) |
| insecure(adjective, unstable, doubtful, unsteady) |
| non-resistant(adjective, change, unfixed, unsustainable) |
| non-stationary(adjective, unbalanced, fluctuate, astable) |
| non-steady(adjective, change, unfixed, unsustainable) |
| nonpersistent(adjective, change, unfixed, unsustainable) |
| nonsustained(adjective, change, unfixed, unsustainable) |
| off-balance(adjective, unsteady, sandy, nonstable) |
| out of balance(adjective, unsteady, sandy, nonstable) |
| polluted(adjective, spoil, spot, vicious, maculate) |
| unbalanced(adjective, change, unfixed, unsustainable) |