| capricious(changeable, erratic, random) |
| chance(changeable, erratic, random) |
| chancy(adjective, delicate, uncertain, unstable, doubtful) |
| iffy(adjective, delicate, uncertain, nervous, unstable) |
| on thin ice(expression, adjective, idiom, delicate, uncertain) |
| problematic(adjective, delicate, uncertain, nervous, unstable) |
| toss |
| touchy(adjective, delicate, important, uncertain, nervous) |
| ambiguous(adjective, delicate, uncertain, unstable, doubtful) |
| ambivalent(doubtful, vague, unsure) |
| arguable(uncertain, doubtful, dubious, unsure, questionable) |
| betwixt and between(expression, adjective, idiom, uncertain, nervous) |
| blind bargain |
| borderline(adjective, delicate, uncertain, nervous, unstable) |
| borderline case |
| chance at odds(expression, idiom) |
| contingency |
| contingent(adjective, delicate, uncertain, unstable, doubtful) |
| dangerous(adjective, bad, severe, delicate, uncertain) |
| debatable(adjective, uncertain, doubtful, dubious, unsure) |