| disconnected(unstable, unreliable, uneven, variable, erratic) |
| discontinuous(unstable, unreliable, uneven, variable, erratic) |
| disorderly(noun, adjective, unstable, irregular, angry) |
| divaricate(verb, adjective, unstable, irregular, changeable) |
| doubtful(adjective, unstable, dubious, changeable, uneven) |
| dying(noun, adjective, unstable, irregular, angry) |
| ephemeral(adjective, unstable, impulsive, unpredictable, explosive) |
| explosive(adjective, passionate, unstable, impulsive, unpredictable) |
| fading(noun, adjective, unstable, irregular, angry) |
| fancy(adjective, behavior, manner, odd) |
| fast and loose(expression, idiom, unpredictable, unreliable, fickle) |
| fluctuant(sense, irregular, dubious, unreliable, risky) |
| fluky(uncertain, unstable, unpredictable, changeable, fickle) |
| flying(noun, adjective, unstable, irregular, angry) |
| foolish(careless, stupid, unstable, senseless, irrational) |
| fugacious(adjective, unstable, impulsive, unpredictable, explosive) |
| funny(adjective, unusual, wild, crazy, irregular) |
| gonzo(adjective, characteristic, person, behavior) |
| halting(noun, adjective, unstable, irregular, angry) |
| hit-or-miss(irregular, erratic, frivolous, random, haphazard) |