| changeful(adjective, upset, careless, anxious, unstable) |
| dubious(adjective, weak, loose, uncertain, irregular) |
| fitful(adjective, careless, strange, unstable, unreasonable) |
| fortuitous(adjective, extraordinary, wonderful, shocking, erratic) |
| indecisive(adjective, uncertain, unstable, shy, doubtful) |
| indeterminate(adjective, loose, doubtful, vague, hesitant) |
| irresolute(adjective, uncertain, unstable, shy, irregular) |
| mutable(adjective, upset, careless, uncertain, anxious) |
| shaky(adjective, dubious, uneven, unbalanced, risky) |
| ticklish(noun, adjective, upset, change, continue) |
| touchy(adjective, difficult, sensitive, unstable, unreliable) |
| uneven(adjective, strange, irregular, improper, odd) |
| vacillating(adjective, uncertain, unstable, shy, irregular) |
| aleatory |
| casual |
| eccentric(adjective, unusual, strange, silly, foolish) |
| fluky(adjective, uncertain, changeable, risky, erratic) |
| insecure(adjective, doubtful, vague, uneven, untrustworthy) |
| irresponsible(adjective, careless, foolish, unstable, unsettled) |
| questionable(adjective, uncertain, doubtful, vague, hesitant) |