| hardened(sophisticated, experienced, mature, urbane, veteran) |
| in the know(expression, idiom, refined, practical, capable) |
| into(adjective, cool, refined, practical, mature) |
| jaded(adjective, refined, practical, mature, cultured) |
| jet-set(adjective, refined, practical, mature, cultured) |
| knowing(sophisticated, refined, practical, experienced, mature) |
| laid-back(adjective, refined, practical, mature, cultured) |
| mature(adjective, sophisticated, refined, practical, experienced) |
| on to(expression, adjective, refined, practical, mature) |
| practical(adjective, cool, smooth, sophisticated, refined) |
| practiced(adjective, refined, practical, qualified, experienced) |
| refined(adjective, cool, smooth, practical, mature) |
| schooled(adjective, refined, practical, mature, cultured) |
| seasoned(adjective, sophisticated, refined, practical, experienced) |
| sharp(adjective, cool, refined, practical, mature) |
| skeptical(adjective, refined, practical, mature, cultured) |
| smooth(refined, practical, cultured, urbane, erudite) |
| stagy(adjective, refined, practical, mature, cultured) |
| streetwise(adjective, cool, refined, practical, mature) |
| studied(adjective, cool, refined, practical, mature) |