Synonyms of breakneck
- 1 Syllable
- swift, fleet, quick, fast, steep, pdq
- 2 Syllables
- quick-fire, fasted, parlous, steeper, headlong, high-speed, hastiest, speedy, quickest, fastest, steeping, quicker, swiftest, hastier, hasty, fleetest, asap, rapid, speediest, whirlwind, lightning, swifter, speedier, hurried, chop-chop, reckless, faster, steepest, speedball, fleeter
- 3 Syllables
- rapider, rapid-fire, jeopardous, double-quick, fleet-footed, barrelling, foolhardy, dangerous, fleetfooted, posthaste, double-time, screamin', barreling
- 4 Syllables
- supersonic, hypersonic, excessive, dangersome, super-sonic, alacritous, ultrasonic, declivitous, harefooted, expeditious, nimble-footed
- 5 Syllables
- precipitate
- 7 Syllables
- overventuresome