| nifty(adjective, elegant, trim, neat, skillful) |
| nimble-footed |
| not born yesterday(expression, idiom, fast, subtle) |
| on the ball(expression, idiom, smart, bright, intelligent) |
| on the double(expression, hot, fast, quick, speedy) |
| peppy(adjective, energetic, lively, active, vigorous) |
| precipitate(prompt, fast, quick, summary, rapid) |
| pronto(hot, fast, quick, summary, rapid) |
| quick as lightning(expression, idiom, velocity) |
| rushing(adjective, fast) |
| savvy(smart, bright, intelligent, skillful, handy) |
| slender(adjective, light, slight, easy, thin) |
| slick(adjective, ability, smart, bright, intelligent) |
| slight(adjective, light, easy, thin, delicate) |
| sly(smart, bright, intelligent, handy, adroit) |
| smooth(adjective, beautiful, elegant, lovely, charming) |
| speedball(hot, fast, quick, summary, speedy) |
| sporty(fit, elegant, trim, neat) |
| subtle |
| supersonic(prompt, hot, fast, quick, rapid) |