| composed(calm, sound, reasonable, sensible, restrained) |
| congruent(clear, sound, reasonable, sensible, rational) |
| conscious(adjective, sound, reasonable, sensible, rational) |
| constructive(adjective, reasonable, sensible, useful, sober) |
| convincing(clear, sound, reasonable, sensible, rational) |
| cool as cucumber(expression, adjective, idiom, calm, reasonable) |
| credible(adjective, sound, sensible, rational, intelligent) |
| deducible(clear, sound, reasonable, sensible, rational) |
| deliberate(adjective, reasoning, intellectual, mental) |
| dependable(calm, sound, reasonable, sensible) |
| discriminating(adjective, clear, sound, reasonable, sensible) |
| disimpassioned(adjective, calm, relaxed, tranquil, easygoing) |
| dispassionate(adjective, calm, sound, relaxed, tranquil) |
| doable(adjective, reasonable, sensible, useful, sober) |
| easy(adjective, calm, relaxed, tranquil, easygoing) |
| easygoing(adjective, calm, relaxed, tranquil, serene) |
| efficient(adjective, reasonable, sensible, useful, sober) |
| empirical(adjective, reasonable, sensible, useful, sober) |
| everyday(applied, hands-on, real-world) |
| experimental(adjective, reasonable, sensible, rational, useful) |