Synonyms For "Superfast" :
1 syllable:
firm, fleet, hot, prompt, quick, smart, swift, tight, winged
2 syllables:
debauched, express, fasting, flying, hurried, instant, loyal, rapid, speedy, sudden, windy
3 syllables:
blistering, degraded, dissolute, hurrying, immobile, libertine, profligate, riotous, scurrying, straightaway, truehearted
4 syllables:
alacritous, degenerate, dissipated, immediate, meteoric