| shifting(adjective, unreliable, uneven, variable, erratic) |
| trembling(adjective, weak, unstable, unsettled, unsteady) |
| undecided(adjective, weak, uncertain, doubtful, unsettled) |
| unsettled(adjective, weak, uncertain, awkward, unstable) |
| vacillatory(adjective, uncertain, shy, doubtful, hesitant) |
| wobbling |
| boggle |
| bumbling(verb, uncertain, hesitant, tentative) |
| caution(noun, doubt, integrity, morality, misgiving) |
| cautious |
| changeable(uncertain, doubtful, unreliable, variable, indefinite) |
| changing(adjective, weak, uncertain, doubtful, unsettled) |
| claudicant(uncertain, hesitant, tentative) |
| clumsy(adjective, uncertain, hesitant, tentative) |
| compunction(noun, doubt, integrity, morality, misgiving) |
| cowering(verb, flinching) |
| delaying(noun, verb, adjective, delay, weakness) |
| diffidence(noun, difficulty, anxiety, confusion, doubt) |
| diffident |
| doubting(verb, adjective, weak, uncertain, shy) |