| borderline(adjective, clear, open, delicate, certain) |
| disputable(adjective, uncertain, doubtful, dubious, tricky) |
| doubtable(uncertain, doubtful, shaky, suspicious, unlikely) |
| fickle(adjective, unreliable, changeable, insecure, erratic) |
| flukey |
| hairy(noun, adjective, delicate, uncertain, sensitive) |
| moot(adjective, open, uncertain, doubtful, dubious) |
| sensitive(adjective, delicate, uncertain, unstable, doubtful) |
| ticklish(noun, adjective, delicate, uncertain, sensitive) |
| touch-and-go(adjective, delicate, uncertain, sensitive, unsettled) |
| touchy(adjective, delicate, uncertain, nervous, sensitive) |
| treacherous(adjective, unreliable, insecure, incalculable) |
| unclear(adjective, clear, open, certain, uncertain) |
| undependable(adjective, uncertain, nervous, doubtful, dubious) |
| unsafe(adjective, delicate, uncertain, sensitive, unstable) |
| arbitrary(adjective, irregular, unpredictable, unreliable, changeable) |
| awkward(adjective, tricky, sticky, challenging) |
| chance(adjective, changeable, erratic, random) |
| clouded(adjective, clear, certain, uncertain, doubtful) |
| contingent(adjective, delicate, uncertain, unstable, doubtful) |