Synonyms of swift

1 Syllable

short, quick, fast, prompt, spright, flying, fleet, pdq

2 Syllables

nighthawk, breakneck, headlong, dizzying, hasty, fleetest, speedier, faster, hastier, speedy, racing, quickly, fleetly, fleeter, prompter, quick-fire, hastiest, fastest, cracking, quicker, speediest, nimblest, sudden, nimble, speedball, ready, fasted, nimbler, screaming, abrupt, express, quickest, snappy, swiftly, spanking, asap, rapid, whirlwind, hurried, chop-chop, pronto, half-assed, winged

3 Syllables

barrelling, double-quick, fleet-footed, impetuous, agile, meteoric, rapider, cyclonic, subito, hot-and-cold, unprompted, posthaste, alate, rapid-fire, pennate, snappily, cursory, barreling, overnight, short-lived, double-time, screamin'

4 Syllables

supersonic, hypersonic, alacritous, ultrasonic, dissolute, super-sonic, unlooked-for, easy-moving, unexpected, expeditious, nimble-footed, impulsive, harefooted

5 Syllables

precipitate, unmeditated, expeditiously