| quick-witted(adjective, familiar, informed, well-informed) |
| reliable(knowledgeable, aware, informed, learned, well-informed) |
| responsible(keen, smart, intelligent, competent, capable) |
| satisfactory(decent, knowledgeable, adequate, qualified, capable) |
| scholarly(adjective, familiar, informed, learned, educated) |
| sensible(adjective, familiar, knowledgeable, skilled, informed) |
| sharp(adjective, keen, smart, familiar, intelligent) |
| sufficient(decent, knowledgeable, adequate, qualified, capable) |
| suitable(good, correct, appropriate, decent, adequate) |
| talented(adjective, keen, smart, suitable, intelligent) |
| there(keen, smart, intelligent, decent, adequate) |
| thoroughbred |
| tuned in(expression, adjective, familiar, knowledgeable, competent) |
| understanding(adjective, familiar, informed, learned, educated) |
| up-to-date(adjective, adverb, familiar, knowledgeable, skilled) |
| up to |
| up to it(expression, idiom, keen, smart, adequate) |
| up to speed(expression, idiom, keen, smart, adequate) |
| versant(adjective, familiar, knowledgeable, skilled, competent) |
| versed in(expression, adjective, familiar, knowledgeable, aware) |