| flimsy(adjective, shake, unstable, erratic, unsteady) |
| fluctuant(adjective, doubt, unstable, erratic, unsteady) |
| hesitative(adjective, doubt, unstable, shy, varying) |
| hesitatory(adjective, doubt, unstable, shy, varying) |
| infirm(adjective, doubt, unstable, shy, erratic) |
| insoluble(adjective, doubtful, unclear, undecide) |
| insolvable(adjective, doubtful, unclear, undecide) |
| labile(adjective, doubt, unstable, erratic, unsteady) |
| lazy(adjective, doubt, uncertain, shy, hesitant) |
| off balance(adjective, shake, unstable, erratic, unsteady) |
| oscillating(adjective, doubt, hesitant, wavering, indecisive) |
| rickety(adjective, shake, unstable, erratic, unsteady) |
| rocky(adjective, shake, unstable, erratic, unsteady) |
| slow(adjective, doubt, uncertain, shy, hesitant) |
| staggering(adjective, doubt, unstable, erratic, unsteady) |
| teetery(adjective, shake, unstable, erratic, unsteady) |
| tickle(adjective, shake, unstable, erratic, unsteady) |
| ticklish(adjective, shake, unstable, erratic, unsteady) |
| tickly(adjective, shake, unstable, erratic, unsteady) |
| tottery(adjective, shake, unstable, erratic, unsteady) |