| insecure(adjective, uncertain, nervous, unstable, doubtful) |
| moody |
| shifting(adjective, unstable, irregular, unsettled, unpredictable) |
| unaccountable(adjective, careless, immoral, thoughtless, reckless) |
| undecided(adjective, uncertain, nervous, doubtful, insecure) |
| uneven |
| unfaithful(adjective, false, dishonest, deceitful, unpredictable) |
| unfixed(adjective, unstable, unsettled, vague, unpredictable) |
| untrue(adjective, false, dishonest, deceitful, unpredictable) |
| whimsical(adjective, excited, unstable, unsettled, unreliable) |
| wishy-washy(adjective, uncertain, nervous, unstable, hesitant) |
| derelict(adjective, careless, negligent) |
| devious(adjective, false, dishonest, deceitful, unreliable) |
| dishonest(adjective, false, deceitful, unreliable, treacherous) |
| fast and loose(expression, adjective, idiom, unreliable, insecure) |
| flimsy(adjective, uncertain, feeble, shaky, hesitant) |
| flitting(adjective, irresolute) |
| giddy(adjective, careless, excited, immoral, thoughtless) |
| loose(adjective, informal, careless, foolish, immoral) |
| tentative(adjective, irresolute) |