| aberrant(irregular, unpredictable, unreliable) |
| abnormal(irregular, unpredictable, unreliable) |
| anomalous(irregular, unpredictable, unreliable) |
| any way the wind blows(expression, careless, unstable, unreasonable, unpredictable) |
| bizarre(irregular, unpredictable, unreliable) |
| blowing hot and cold(expression, careless, unstable, unreasonable, unpredictable) |
| careless(unstable, unreasonable, unpredictable, changeable, variable) |
| changeable(adjective, irregular, unpredictable, unreliable, variable) |
| changeful(careless, unstable, unreasonable, unpredictable, changeable) |
| contrary(careless, unstable, unreasonable, unpredictable, changeable) |
| desultory(adjective, irregular, unpredictable, unreliable) |
| devious(irregular, unpredictable, unreliable) |
| dubious(irregular, unpredictable, unreliable) |
| eccentric(irregular, unpredictable, unreliable) |
| effervescent(careless, unstable, unreasonable, unpredictable, changeable) |
| every which way(expression, careless, unstable, unreasonable, unpredictable) |
| fantastical |
| fickle(adjective, careless, unstable, unreasonable, unpredictable) |
| fitful(adjective, careless, unstable, unreasonable, irregular) |
| flighty(adjective, careless, unstable, unreasonable, unpredictable) |