| twofold(adjective, doubt, unstable, shy, varying) |
| unpredictable(adjective, doubt, uncertain, shy, hesitant) |
| unresolved(adjective, doubt, unstable, shy, doubtful) |
| unsolvable(adjective, doubtful, unclear, undecide) |
| unsteady(adjective, doubt, uncertain, shake, unstable) |
| unwilling(adjective, doubt, uncertain, shy, hesitant) |
| vibratory(adjective, doubt, shake, unsteady, oscillate) |
| waggly(adjective, shake, unstable, erratic, unsteady) |
| afraid(adjective, uncertain, hesitant, undetermined, hesitative) |
| ambivalent(adjective, unstable, doubtful, hesitant, wavering) |
| averse(adjective, uncertain, hesitant, undetermined, hesitative) |
| chancy(adjective, uncertain, unstable, unclear, unbalanced) |
| changeable(adjective, unstable, hesitant, wavering, erratic) |
| dawdling(adjective, doubt, uncertain, shy, hesitant) |
| delaying(adjective, doubt, uncertain, shy, hesitant) |
| dithering(adjective, doubt, unstable, shy, hesitant) |
| flickering(adjective, unstable, erratic, unsteady) |
| hanging back(adjective, doubt, uncertain, shy, hesitant) |
| inconstant(adjective, unstable, hesitant, wavering, erratic) |
| indeterminate(adjective, doubt, uncertain, unstable, shy) |