| adroit(adjective, smart, sensitive, wise, shrewd) |
| alert(adjective, keen, careful, thoughtful, cautious) |
| all there(expression, adjective, calm, good, sound) |
| apt(sensible, wise, prudent, learned, sage) |
| attentive(adjective, reasonable, careful, thoughtful, sober) |
| awake(adjective, understanding, cool, reasonable, keen) |
| bland(adjective, reasonable, sensible, restrained, modest) |
| brilliant(adjective, cool, sharp, significant, sensitive) |
| cagey(adjective, smooth, reasonable, keen, sharp) |
| chary(adjective, careful, thoughtful, sober, cautious) |
| clear(sound, reasonable, sensible, rational, logical) |
| common sense |
| commonsense(sound, reasonable, sensible, rational) |
| commonsensible(adjective, sound, reason, sensible, sane) |
| compos mentis(expression, adjective, sensible, rational, healthy) |
| composed(calm, sound, reasonable, sensible) |
| conscious(adjective, understanding, cool, sound, reasonable) |
| consequent(adjective, good, clear, sound, reasonable) |
| conservative(adjective, calm, soft, reasonable, gentle) |
| contemplative(sound, sharp, sensible, intelligent, wise) |