| reasonable(adjective, sound, keen, sensible, deep) |
| reflex |
| sage(adjective, sound, sharp, sensible, deep) |
| scholarly(sound, sharp, sensible, deep, thoughtful) |
| sensible(adjective, sound, reasonable, sharp, smart) |
| smart(sound, sharp, sensible, intelligent, wise) |
| thought(reasoning, intellectual, mental) |
| well-advised(adjective, sound, reasonable, sensible, rational) |
| abstracted(adjective, thoughtful, thinking, meditative) |
| academic(thoughtful, serious) |
| advisable(adjective, sound, sensible, rational, intelligent) |
| all there(expression, adjective, sound, reasonable, sensible) |
| analytical(adjective, sound, reasonable, honest, sensible) |
| arguable(adjective, sound, sensible, rational, intelligent) |
| attentive(reasonable, thoughtful, serious, thinking, absorbed) |
| believable(adjective, sound, sensible, rational, intelligent) |
| brainy(adjective, reasonable, keen, deep, rational) |
| brilliant |
| brood |
| calculating(adjective, reasonable, keen, sensible, deep) |