superluminal

adj 0.792

superfast

adj 0.707

supersonic

adj 0.675

ultrafast

adj 0.663

superspeed

adj 0.662

fast

adj 0.658

lightning fast

adj 0.650

tachyonic

adj 0.638

subluminal

adj 0.608

hypervelocity

adj 0.604

speeding

adj 0.601

hypersonic

adj 0.596

accelerated

adj 0.596

lightfast

adj 0.590

speedy

adj 0.580

accelerate

adj 0.558

hyperspatial

adj 0.555

speeded

adj 0.552

flying

adj 0.544

quick as a flash

adj 0.543

lightning

adj 0.538

prestissimo

adj 0.535

accelerative

adj 0.534

fibre optic

adj 0.533

lightninglike

adj 0.533

expedited

adj 0.533

ultraluminous

adj 0.531

futuristic

adj 0.522

fast-flowing

adj 0.521

futurist

adj 0.517

instantaneous

adj 0.516

flash

adj 0.516

expeditious

adj 0.513

spacelike

adj 0.513

quicksilver

adj 0.511

expedite

adj 0.510

forward

adj 0.506

light

adj 0.505

full speed ahead

adj 0.504

rapid

adj 0.503