| quick(hot, rapid, speedy) |
| racing(hot, quick, rapid, nimble, speedy) |
| rapid(hot, quick, speedy) |
| ready(hot, quick, rapid, nimble, speedy) |
| restlessly(vigorously, earnestly, actively, hastily, carefully) |
| seriously(vigorously, earnestly, actively, hastily, carefully) |
| snap(hot, quick, rapid, nimble, speedy) |
| snappy(hot, quick, rapid, nimble, speedy) |
| speedball(hot, quick, rapid, nimble, speedy) |
| speedily(vigorously, earnestly, actively, hastily, carefully) |
| speedy(hot, quick, rapid) |
| spiritedly(vigorously, earnestly, actively, hastily, carefully) |
| strenuously(vigorously, earnestly, actively, hastily, carefully) |
| studiously(vigorously, earnestly, actively, hastily, carefully) |
| supersonic(hot, quick, rapid, nimble, speedy) |
| swift(hot, quick, rapid, speedy) |
| unremittingly(vigorously, earnestly, actively, hastily, carefully) |
| unweariedly(vigorously, earnestly, actively, hastily, carefully) |
| velocious(hot, quick, rapid, nimble, speedy) |
| vigilantly(vigorously, earnestly, actively, hastily, carefully) |