| able to recognize(expression, adjective, idiom, understanding, keen) |
| acquainted(adjective, understanding, keen, sensible, certain) |
| aesthetic(adjective, understanding, keen, sensible, certain) |
| alert(adjective, understanding, keen, sensible, certain) |
| alive to(expression, adjective, understanding, keen, sensible) |
| all there(expression, adjective, reasonable, sensible, rational) |
| apperceptive(adjective, understanding, keen, sensible, certain) |
| apprised(adjective, understanding, keen, sensible, certain) |
| assured(adjective, understanding, keen, sensible, certain) |
| astute(adjective, understanding, reasonable, rational, sober) |
| attentive(adjective, understanding, reasonable, keen, sensible) |
| au courant(expression, adjective, understanding, reasonable, keen) |
| awake(adjective, understanding, keen, sensible, certain) |
| aware(adjective, understanding, reasonable, keen, sensible) |
| canny(adjective, reasonable, rational, intelligent, sober) |
| certain(adjective, understanding, keen, sensible, alert) |
| cognizant(adjective, understanding, reasonable, keen, sensible) |
| commonsensical(adjective, reasonable, rational, sober, wise) |
| conscious(adjective, understanding, reasonable, keen, sensible) |
| consequent(adjective, reasonable, rational, intelligent, sober) |