| understanding(adjective, sound, sharp, smart, sensible) |
| witty(adjective, smart, bright, sensible, intelligent) |
| alert(adjective, understanding, keen, smart, bright) |
| apt(adjective, smart, bright, sensible, intelligent) |
| cagey(adjective, smooth, reasonable, keen, sharp) |
| calculating(verb, adjective, smooth, reasonable, keen) |
| capable(adjective, smart, bright, intelligent) |
| cautious(adjective, sensible, wise, shrewd, clever) |
| cognizant(adjective, understanding, cool, reasonable, significant) |
| crafty(adjective, smooth, keen, sharp, smart) |
| cunning(adjective, sound, smooth, keen, sharp) |
| experienced(adjective, cool, sound, smooth, keen) |
| farseeing |
| forward-thinking |
| intuitive(adjective, understanding, sound, keen, sharp) |
| learned(adjective, sound, sharp, familiar, deep) |
| piercing(adjective, sharp, smart, sensitive, intelligent) |
| scholarly(adjective, sound, sharp, smart, sensible) |
| wary(adjective, sensible, wise, cautious, clever) |
| artful(adjective, sharp, smart, intelligent, cunning) |