| seized of |
| sensible of |
| sensible to |
| sensitive to(expression, adjective, understanding, keen, sensible) |
| skeptical(adjective, cool, refined, practical, mature) |
| smooth(refined, practical, cultured, urbane, erudite) |
| sophic(understanding, keen, alert, sensitive, penetrating) |
| stagy(adjective, cool, refined, practical, mature) |
| studied(adjective, cool, refined, practical, cultured) |
| suave(adjective, cool, refined, practical, mature) |
| supraliminal(adjective, understanding, keen, sensible, certain) |
| sure(adjective, understanding, keen, sensible, certain) |
| svelte(adjective, cool, refined, practical, mature) |
| taken for granted(expression, idiom, silent, tacit, unspoken) |
| undeceived |
| understanding(adjective, keen, sensible, certain, alert) |
| understood(adjective, silent, assumed, implicit, tacit) |
| unstated(silent, tacit, unspoken) |
| up-to-date(knowledgeable, aware, informed, learned, well-informed) |
| uptown(adjective, cool, refined, practical, mature) |