| treacherous(adjective, careless, loose, unreliable, fickle) |
| unpredicted(adjective, extraordinary, wonderful, shocking, astonishing) |
| unsound(adjective, careless, loose, uncertain, unreliable) |
| varying(adjective, unstable, irregular, unsettled, unreliable) |
| wild(noun, adjective, violent, careless, silly) |
| atypical |
| changing(adjective, upset, uncertain, anxious, worried) |
| conjectural(adjective, doubtful, vague, hesitant, changeable) |
| fanciful(adjective, careless, unstable, unreasonable, erratic) |
| fantastic(adjective, change, continue, unusual, strange) |
| freak |
| giddy(adjective, careless, immoral, thoughtless, uneven) |
| hairy(noun, adjective, risky, dangerous, unsafe) |
| haphazard(adjective, risky, erratic, dangerous, frivolous) |
| incidental |
| incongruous(adjective, strange, uncertain, irregular, odd) |
| irrational(adjective, weak, silly, uncertain, crazy) |
| protean(adjective, unstable, unsettled, unreliable, changeable) |
| slippery(adjective, weak, uncertain, sensitive, doubtful) |
| speculative(doubtful, vague, unsure, intention, risky) |