speediness

noun 0.763

swiftness

noun 0.715

rapidity

noun 0.697

rapidness

noun 0.667

expeditiousness

noun 0.665

celeration

noun 0.654

quickness

noun 0.648

alacrity

noun 0.624

fleetness

noun 0.619

speed

noun 0.607

promptitude

noun 0.597

nimbleness

noun 0.585

agility

noun 0.581

haste

noun 0.579

lightspeed

noun 0.576

hurriedness

noun 0.566

speed of light

noun 0.564

briskness

noun 0.563

promptness

noun 0.561

fast

noun 0.559

hastiness

noun 0.558

speedster

noun 0.556

precipitancy

noun 0.550

acceleration

noun 0.549

wire speed

noun 0.548

velocity

noun 0.546

faster

noun 0.541

earliness

noun 0.541

timeliness

noun 0.537

swift

noun 0.530

quick-wittedness

noun 0.527

speed parameter

noun 0.527

sprightliness

noun 0.524

brevity

noun 0.521

speedup

noun 0.517

high speed

noun 0.517

speeding

noun 0.517

hurry

noun 0.511

instantaneity

noun 0.511

mediacy

noun 0.509

deftness

noun 0.503

precocity

noun 0.503

tempol

noun 0.501

suddenness

noun 0.501