| diplomatic(adjective, sensible, sensitive, wise, shrewd) |
| discreet(adjective, understanding, keen, sensible, alert) |
| mindful(adjective, understanding, enthusiastic, alert, familiar) |
| rational(adjective, clear, reasonable, sensible, alert) |
| savvy(adjective, understanding, cool, smooth, keen) |
| sentient(adjective, understanding, open, cool, keen) |
| sound(adjective, clear, reasonable, sharp, sensible) |
| brainy(adjective, understanding, cool, smooth, keen) |
| foresighted(adjective, sound, sharp, sensible, intelligent) |
| provident(adjective, wise, shrewd, acute, clairvoyant) |
| ready(adjective, open, sharp, smart, bright) |
| receptive(adjective, understanding, open, keen, fine) |
| sapient(adjective, sound, sharp, sensible, intelligent) |
| subtle(adjective, clear, sound, reasonable, sharp) |
| trenchant(adjective, strong, keen, sharp, intense) |
| adroit(adjective, keen, sharp, smart, bright) |
| alive(adjective, open, cool, smart, bright) |
| clairvoyant(adjective, wise, shrewd, acute, psychic) |
| clear(sound, reasonable, sensible, rational, logical) |
| delicate(adjective, understanding, keen, fine, sensible) |