| gingerly(adjective, careful, thoughtful, prudent, watchful) |
| hesitating(adjective, weak, uncertain, shy, doubtful) |
| indefinite(adjective, open, uncertain, careful, doubtful) |
| makeshift(adjective, unsettled, extra, temporary, speculative) |
| moot(adjective, uncertain) |
| prudent(adjective, careful, thoughtful, watchful, judicious) |
| questionable(adjective, uncertain, doubtful, vague, unsure) |
| safe(adjective, careful, thoughtful, prudent, watchful) |
| shilly-shally(adjective, decide, irresolute) |
| shrinking(adjective, nervous, shy, fearful, timid) |
| undependable(adjective, irresolute) |
| unproven(adjective, experiment, experimental) |
| weak(adjective, nervous, shy, fearful, indecisive) |
| yellow(adjective, nervous, shy, fearful, irresolute) |
| analytical(adjective, experimental) |
| apprehensive(adjective, quiet, modest, nervous, shy) |
| attempt |
| ad interim(adjective, conditional, experimental) |
| analytic |
| arguable(adjective, uncertain) |