| iffy(adjective, delicate, uncertain, sensitive, unstable) |
| tricky(adjective, difficult, delicate, rude, uncertain) |
| adventurous(adjective, daring, safety) |
| critical(adjective, bad, severe, nasty, difficult) |
| harmful(adjective, risky, dangerous, injurious, unsafe) |
| wicked(adjective, severe, delicate, awful, terrible) |
| menacing(adjective, bad, heavy, risky, dangerous) |
| difficult(adjective, unpredictable, risky, dangerous, treacherous) |
| unpredictable(adjective, delicate, wild, uncertain, sensitive) |
| unstable(adjective, delicate, wild, uncertain, doubtful) |
| unsteady(adjective, delicate, uncertain, unstable, doubtful) |
| venturous(noun, adjective, safety, adventurous) |
| chance(noun, adjective, risky, chancy) |
| explosive(adjective, unstable, unpredictable, insecure, volatile) |
| jeopardous(adjective, bad, delicate, uncertain, sensitive) |
| shaky(adjective, delicate, uncertain, unstable, doubtful) |
| unsound(adjective, severe, delicate, awful, terrible) |
| unsure(adjective, delicate, uncertain, unstable, doubtful) |
| vulnerable(adjective, bad, delicate, heavy, uncertain) |
| desperate(adjective, reckless, outrageous) |