| vigilant(adjective, cool, significant, intelligent, brilliant) |
| watchful(adjective, cool, significant, intelligent, brilliant) |
| well-taught(familiar, knowledgeable, informed, experienced, cultured) |
| well read(adjective, knowledge, experience, skill, expert) |
| well up(adjective, knowledge, experience, skill, expert) |
| with-it(adjective, cool, crack, significant, familiar) |
| with it(expression, adjective, knowledgeable, aware, informed) |
| worldly(adjective, cool, significant, familiar, intelligent) |
| worldly-wise(adjective, cool, significant, familiar, intelligent) |
| abreast of(expression, current, informed) |
| accustomed(familiar, knowledgeable, informed) |
| acute(smart, bright, brainy) |
| alert(smart, bright, familiar, informed, brainy) |
| all-knowing |
| all-seeing |
| all there(expression, smart, bright, enlightened, brainy) |
| almighty |
| analytical |
| appreciative(familiar, informed, experienced, civilized, well-bred) |
| apprised(familiar, informed) |