| acquainted(adjective, alert, familiar, wise, knowledgeable) |
| acute(sharp, smart, intelligent, clever, astute) |
| adept(adjective, smart, practical, expert, skilled) |
| adroit(adjective, smooth, smart, practical, expert) |
| adult(adjective, cool, refined, practical, mature) |
| alert(verb, adjective, familiar, advise, wise) |
| alive(adjective, alert, familiar, wise, knowledgeable) |
| appraised(adjective, alert, familiar, wise, knowledgeable) |
| appreciative(adjective, alert, familiar, wise, knowledgeable) |
| apprehensive(adjective, alert, familiar, wise, knowledgeable) |
| apprised(adjective, alert, familiar, wise, knowledgeable) |
| apt(adjective, smooth, smart, practical, expert) |
| argute(sharp, smart, intelligent, clever, astute) |
| artful(sharp, smart, intelligent, clever, astute) |
| artificial(adjective, cool, refined, practical, mature) |
| astucious(sharp, smart, intelligent, clever, astute) |
| astute(sharp, smart, intelligent, clever) |
| attentive(adjective, alert, familiar, wise, knowledgeable) |
| au courant(expression, adjective, alert, familiar, wise) |
| awake(adjective, alert, familiar, wise, knowledgeable) |