| perspicacious(adjective, sharp, sensible, sensitive, wise) |
| discerning(adjective, smooth, sharp, perceptive, psychic) |
| clear-eyed |
| judicious(adjective, sharp, sensible, thoughtful, wise) |
| observant(adjective, sympathetic, alert, wise, perceptive) |
| understanding(adjective, correct, alert, intelligent, perceptive) |
| realistic |
| clairvoyant(adjective, perceptive, psychic, telekinetic, mystic) |
| sapient(adjective, smooth, sensible, intelligent, wise) |
| bright(adjective, sharp, alert, sensitive, intelligent) |
| eagle-eyed(correct, alert, intelligent, perceptive, attentive) |
| forward-thinking |
| intelligent(adjective, sharp, sympathetic, alert, sensitive) |
| perceiving |
| percipient(adjective, sharp, sympathetic, sensitive, wise) |
| rational(adjective, sensible, wise, shrewd, learned) |
| shrewd(adjective, smooth, sharp, sensible, sensitive) |
| alert(intelligent, wise, attentive, watchful, insightful) |
| alive(correct, alert, intelligent, perceptive, attentive) |
| astute(adjective, sharp, sensible, sensitive, intelligent) |