fast

adj 0.838

lightning fast

adj 0.837

ultrafast

adj 0.837

superspeed

adj 0.811

speedy

adj 0.750

quick as a flash

adj 0.722

supersonic

adj 0.718

faster-than-light

adj 0.707

rapid

adj 0.694

prestissimo

adj 0.690

quick

adj 0.681

speeding

adj 0.664

lightfast

adj 0.657

instant

adj 0.655

rapid fire

adj 0.654

speeded

adj 0.653

accelerated

adj 0.648

turbo

adj 0.635

hypersonic

adj 0.634

superluminal

adj 0.633

swift

adj 0.629

accelerate

adj 0.628

hypervelocity

adj 0.627

fast-flowing

adj 0.620

quicksilver

adj 0.619

superhigh

adj 0.618

instantaneous

adj 0.615

super

adj 0.614

ultrashort

adj 0.613

superhot

adj 0.609

ultraslow

adj 0.609

expedited

adj 0.608

expeditious

adj 0.607

blazing

adj 0.606

superfine

adj 0.606

supersmart

adj 0.604

mile-a-minute

adj 0.603

breakneck

adj 0.591

lightning

adj 0.591

flash

adj 0.585

quick off the mark

adj 0.585

superactive

adj 0.584

ultra-high

adj 0.584

expedite

adj 0.583

tachy

adj 0.580

ultra

adj 0.580

lightninglike

adj 0.579

full speed ahead

adj 0.577

sharpish

adj 0.573

quick on the draw

adj 0.567

quick-setting

adj 0.564

immediate

adj 0.558

fast-food

adj 0.555

hasty

adj 0.554

supercharged

adj 0.553

raced

adj 0.552

rush

adj 0.552

supercool

adj 0.552

flashy

adj 0.551

furious

adj 0.548

brisk

adj 0.548

rushing

adj 0.547

hotfoot

adj 0.546

overhasty

adj 0.546

hyper

adj 0.544

short order

adj 0.544

hair-trigger

adj 0.543

ultrafine

adj 0.541

superhuman

adj 0.540

express

adj 0.539

straightaway

adj 0.539

accelerative

adj 0.539

ultracompact

adj 0.538

ultrasmall

adj 0.538

efficient

adj 0.536

extreme

adj 0.533

quick on the uptake

adj 0.533

white-hot

adj 0.529

sudden

adj 0.529

turbocharged

adj 0.529

dashing

adj 0.528

sonic

adj 0.528

rock hard

adj 0.527

rushed

adj 0.526

snappy

adj 0.525

hotshot

adj 0.523

supermodern

adj 0.523

nimble

adj 0.522

flying

adj 0.522

superheavy

adj 0.522

ultralight

adj 0.521

nitro

adj 0.521

quick-sighted

adj 0.520

superb

adj 0.520

multispeed

adj 0.520

very good

adj 0.519

hyperactive

adj 0.518

superthin

adj 0.518

topflight

adj 0.517

ultramodern

adj 0.516