| fluid(adjective, changeable) |
| fragile(unstable, shaky, unsteady, wobbly) |
| hypersensitive(adjective, understanding, keen, fine, sensible) |
| incalculable(adjective, unreliable, insecure, treacherous) |
| incredulous |
| injurious(adjective, dangerous) |
| irritable(adjective, understanding, keen, fine, sensible) |
| lethal(adjective, risky, dangerous, unsafe) |
| life-threatening(adjective, dangerous) |
| loaded(adjective, bad, delicate, heavy, uncertain) |
| mercurial(adjective, delicate, changeable, uneven, tricky) |
| mutable(adjective, changeable, uneven, unbalanced, unhinged) |
| nervous(adjective, understanding, weak, keen, fine) |
| ominous(adjective, dangerous) |
| out on a limb(expression, adjective, idiom, adverb, trouble) |
| perishable |
| pregnable(adjective, unreliable, insecure, treacherous, incalculable) |
| pressing(adjective, dangerous) |
| problematical(tricky, risky, hazardous, sticky, challenging) |
| protean(adjective, changeable) |