| wavering(adjective, uncertain, doubtful, unsure) |
| workable(adjective, conceivable, tenable) |
| able to hold water(expression, adjective, idiom, conceivable, tenable) |
| advisable(adjective, sound, sensible, rational, intelligent) |
| all there(expression, adjective, sound, sensible, rational) |
| argumentative(adjective, hot, dubious, suspect, questionable) |
| assertable(adjective, conceivable, tenable) |
| between rock and hard place(expression, adjective, idiom, uncertain, dubious) |
| cerebral(adjective, sound, sensible, rational, intelligent) |
| certain |
| challengeable |
| chancy(adjective, uncertain, doubtful, hesitant, dubious) |
| clear-cut(adjective, sound, sensible, rational, intelligent) |
| cognitive(adjective, sound, sensible, rational, intelligent) |
| commonsensical(adjective, sound, sensible, rational, intelligent) |
| confused(adjective, uncertain) |
| confutative |
| conjectural |
| conscious(adjective, sound, sensible, rational, intelligent) |
| consequent(adjective, sound, sensible, rational, intelligent) |