| lacking confidence(adjective, doubt, uncertain, shy, hesitant) |
| of two minds(adjective, unstable, doubtful, hesitant, wavering) |
| shifting(adjective, unstable, hesitant, wavering, erratic) |
| uneager(adjective, doubt, shy, doubtful, hesitant) |
| unstable(adjective, doubt, uncertain, wavering, varying) |
| vague(adjective, doubt, uncertain, unstable, shy) |
| variable(adjective, doubt, uncertain, unstable, wavering) |
| waffling(adjective, doubt, uncertain, unstable, shy) |
| aguish(adjective, shake, unsteady, oscillate) |
| ambiguous(adjective, uncertain, unclear, unbalanced, indefinite) |
| amphibolic(adjective, doubt, varying, oscillating, wobbling) |
| ashake(adjective, shake, unsteady, oscillate) |
| ashiver(adjective, shake, unsteady, oscillate) |
| astable(adjective, unstable, erratic, unsteady) |
| astatic(adjective, unstable, erratic, unsteady) |
| at large(adjective, uncertain, unclear, unbalanced, indefinite) |
| atremble(adjective, shake, unsteady, oscillate) |
| backward(adjective, uncertain, hesitant, undetermined, hesitative) |
| betwixt and between(adjective, unstable, doubtful, vacillating) |
| blowing cold and hot(adjective, unstable, doubtful, vacillating) |