superfast

adj 0.837

ultra

adj 0.738

ultrashort

adj 0.732

ultra-high

adj 0.731

ultraslow

adj 0.731

lightning fast

adj 0.717

fast

adj 0.712

superspeed

adj 0.712

ultrafine

adj 0.702

supersonic

adj 0.675

faster-than-light

adj 0.663

ultrasonic

adj 0.662

ultralow

adj 0.657

superluminal

adj 0.651

ultracompact

adj 0.646

rapid

adj 0.637

ultraluminous

adj 0.635

ultramodern

adj 0.634

ultrasmall

adj 0.632

ultradian

adj 0.631

ultracold

adj 0.631

hypervelocity

adj 0.629

hypersonic

adj 0.625

rapid fire

adj 0.624

accelerated

adj 0.624

ultralight

adj 0.624

ultrathin

adj 0.623

lightfast

adj 0.623

instantaneous

adj 0.622

instant

adj 0.614

ultraviolet

adj 0.614

quick as a flash

adj 0.614

prestissimo

adj 0.614

speedy

adj 0.611

turbo

adj 0.608

subnanosecond

adj 0.605

ultrawideband

adj 0.600

quick

adj 0.597

ultrarich

adj 0.592

superhigh

adj 0.576

accelerate

adj 0.571

quicksilver

adj 0.571

tachyonic

adj 0.570

tachy

adj 0.568

superfine

adj 0.568

ultrapure

adj 0.565

speeding

adj 0.559

ultrametric

adj 0.559

mile-a-minute

adj 0.558

hyperfine

adj 0.556

extreme

adj 0.554

fast-flowing

adj 0.552

immediate

adj 0.550

supramaximal

adj 0.549

expedited

adj 0.548

superhot

adj 0.547

hyper

adj 0.546

superactive

adj 0.545

super

adj 0.544

lightninglike

adj 0.541

ultraliberal

adj 0.539

supermodern

adj 0.538

ultracompetitive

adj 0.537

hair-trigger

adj 0.537

hypermodern

adj 0.535

urgent

adj 0.534

lightning

adj 0.534

blazing

adj 0.533

accelerative

adj 0.533

short-period

adj 0.531

expeditious

adj 0.531

speeded

adj 0.529

exponential

adj 0.529

supercritical

adj 0.526

supersensory

adj 0.526

breakneck

adj 0.523

ultrahazardous

adj 0.523

acute

adj 0.522

turbomolecular

adj 0.521

quantum

adj 0.521

sudden

adj 0.521

quick-setting

adj 0.520

supersmart

adj 0.520

short order

adj 0.519

flash

adj 0.518

hyperspatial

adj 0.518

superthin

adj 0.516

ultramafic

adj 0.515

swift

adj 0.515

subnanometer

adj 0.514

hyperactive

adj 0.514

expedite

adj 0.512

sonic

adj 0.512

superhuman

adj 0.510

ultramarine

adj 0.509

rush

adj 0.508

real-time

adj 0.508

subwavelength

adj 0.507

fibre optic

adj 0.507

nitro

adj 0.507