| pondering(adjective, reasonable, keen, deep, thoughtful) |
| preoccupied(adjective, reasonable, keen, deep, rational) |
| rational(adjective, reasonable, keen, sensible, deep) |
| reflexion |
| serious(adjective, reasonable, keen, deep, thoughtful) |
| wistful(adjective, reasonable, keen, deep, thoughtful) |
| abstracted(adjective, thoughtful, thinking, meditative) |
| contemplating(adjective, thoughtful, thinking, premeditated, considered) |
| engrossed(adjective, reasonable, keen, deep, rational) |
| meditating(adjective, thoughtful) |
| rapt(adjective, reasonable, keen, deep, thoughtful) |
| reflecting(adjective, reasonable, keen, deep, thoughtful) |
| reflection |
| ruminating(adjective, rational, intelligent, thoughtful, thinking) |
| rumination |
| sensible(adjective, intelligent, sage) |
| absorbed(adjective, reasonable, keen, deep, rational) |
| alert |
| analytical(adjective, reasonable, keen, deep, rational) |
| astute(adjective, sensible, intelligent, sage) |