backbreaking

adj 0.617

superfast

adj 0.591

heart-pounding

adj 0.584

cutthroat

adj 0.579

headlong

adj 0.575

hectic

adj 0.572

breakbone

adj 0.569

precipitous

adj 0.568

rapid

adj 0.561

speeding

adj 0.556

breathtaking

adj 0.550

frantic

adj 0.548

rushing

adj 0.545

frenetic

adj 0.544

heart-thumping

adj 0.541

lightning fast

adj 0.539

hellacious

adj 0.537

prestissimo

adj 0.537

hypervelocity

adj 0.535

fast

adj 0.533

rushed

adj 0.532

gut-wrenching

adj 0.530

hardpressed

adj 0.528

breathless

adj 0.527

mile-a-minute

adj 0.526

tachy

adj 0.525

brisk

adj 0.523

ultrafast

adj 0.523

helter-skelter

adj 0.522

rapid fire

adj 0.521

hurried

adj 0.519

bone-shaking

adj 0.519

speedy

adj 0.518

speeded

adj 0.518

pell-mell

adj 0.518

frenzied

adj 0.517

rush

adj 0.514

braked

adj 0.514

overhasty

adj 0.514

dizzying

adj 0.513

raced

adj 0.512

heartbreaking

adj 0.512

rackety

adj 0.512

blazing

adj 0.511

strenuous

adj 0.508

gut-busting

adj 0.508

steep

adj 0.507

accelerated

adj 0.505

gruelling

adj 0.503

hypercompetitive

adj 0.503

onrushing

adj 0.502

unrelenting

adj 0.501

earsplitting

adj 0.500