| vigilant(adjective, cool, reasonable, sensible, restrained) |
| wary(smart, sensible, wise, cautious, clever) |
| well-informed(adjective, cool, significant, familiar, intelligent) |
| well-read(familiar, knowledgeable, informed) |
| well-taught(familiar, knowledgeable, informed) |
| well-versed(familiar, sophisticated, knowledgeable, skilled, competent) |
| with-it(adjective, cool, smart, significant, intelligent) |
| with it(expression, smart, shrewd, clever) |
| witting(adjective, cool, significant, intelligent, brilliant) |
| world-wise |
| able(smart, shrewd, clever) |
| accurate(sensible, wise, shrewd) |
| acquainted with(expression, familiar, knowledgeable, informed) |
| artful(smart, shrewd, clever, subtle) |
| broken(adjective, disappointed, disheartened, embittered, disenchanted) |
| brought down to earth(expression, adjective, idiom, disappointed, embittered) |
| certified |
| civilized(familiar, knowledgeable, informed) |
| clear-sighted(sensible, wise, shrewd) |
| coached(familiar, knowledgeable, informed) |