| open(adjective, sensible, sympathetic, ready, active) |
| prehensile |
| prescient(adjective, familiar, wise, psychic, clairvoyant) |
| sane(adjective, sensible, intelligent, wise, shrewd) |
| sharp-sighted(adjective, smart, intelligent, clever) |
| skilful |
| sophic(adjective, understanding, cool, smooth, keen) |
| strong(adjective, sharp, intense, powerful, determined) |
| susceptive(adjective, understanding, open, keen, fine) |
| tuned in(expression, adjective, understanding, cool, keen) |
| vigilant(adjective, understanding, cool, sharp, bright) |
| with it(expression, adjective, understanding, cool, sharp) |
| able(adjective, smart, bright, brainy, sharp-witted) |
| acquainted(adjective, understanding, sensible, alert, familiar) |
| adept(adjective, keen, sharp, smart, bright) |
| alive to(expression, observant, insightful) |
| analytical(adjective, clear, sound, reasonable, sensible) |
| apprised(adjective, understanding, alert, familiar, wise) |
| argute(sharp, smart, intelligent, clever, astute) |
| artful(adjective, sharp, smart, sensitive, intelligent) |