| conversant(adjective, understanding, cool, reasonable, sensible) |
| cunning(adjective, sound, smooth, keen, sharp) |
| deductive(sound, reasonable, sensible, reasoning, intellectual) |
| detached |
| disinterested |
| fitting(sensible, useful, wise, practical, prudent) |
| forethoughtful(careful, thoughtful, prudent, watchful, guarded) |
| gingerly(careful, thoughtful, cautious, prudent, watchful) |
| having foresight(expression, cautious, tactful, circumspect) |
| healthy(sensible, rational, stable, sober, well-balanced) |
| hep(smart, shrewd, clever, subtle, artful) |
| hep to(expression, adjective, understanding, sensible, knowledgeable) |
| hesitant |
| hip to(expression, adjective, sensible, knowledgeable, aware) |
| holding together(expression, clear, sound, reasonable, sensible) |
| holding water(expression, clear, sound, reasonable, sensible) |
| impartial(adjective, calm, sound, soft, reasonable) |
| in on(expression, adjective, understanding, sensible, knowledgeable) |
| in right mind(expression, adjective, idiom, understanding, reasonable) |
| in the know(expression, adjective, idiom, smooth, keen) |