rapidity

• POS: Noun
• HYPHEN: ra=pid=i=ty

CIDE DICTIONARY

rapidity, n. [L. rapiditas: cf. F. rapidité.].

 The quality or state of being rapid; swiftness; celerity; velocity; as, the rapidity of a current; rapidity of speech; rapidity of growth or improvement.  [1913 Webster]

Syn. -- Rapidness; haste; speed; celerity; velocity; swiftness; fleetness; quickness; agility.

THESAURUS

rapidity

air speed, alacrity, bat, briskness, ceaselessness, celerity, chattering, constancy, constant flow, continualness, continuity, decisiveness, dispatch, expedition, expeditiousness, fastness, flight, flit, flurry, gait, ground speed, haste, hurry, immediacy, immediateness, incessancy, instantaneousness, knots, lightning speed, miles per hour, noninterruption, oscillation, pace, perpetuity, precipitation, promptitude, promptness, pulsation, punctuality, punctualness, quick fire, quickness, rapid fire, rapid recurrence, rapid succession, readiness, regularity, repetition, round pace, rpm, rush, snappiness, speed, speediness, staccato, steadiness, stuttering, summariness, sustainment, swift rate, swiftness, tattoo, unintermission, uninterruption, velocity, vibration

ROGET THESAURUS

rapidity

Velocity

N velocity, speed, celerity, swiftness, rapidity, eagle speed, expedition, pernicity, acceleration, haste, spurt, rush, dash, race, steeple chase, smart rate, lively rate, swift rate, rattling rate, spanking rate, strapping rate, smart pace, lively pace, swift pace, rattling pace, spanking pace, strapping pace, round pace, flying, flight, lightning, greased lightning, light, electricity, wind, cannon ball, rocket, arrow, dart, hydrargyrum, quicksilver, telegraph, express train, torrent, eagle, antelope, courser, race horse, gazelle, greyhound, hare, doe, squirrel, camel bird, chickaree, chipmunk, hackee, ostrich, scorcher, Mercury, Ariel, Camilla, Harlequin, log, log line, speedometer, odometer, tachometer, strobe, radar speed detector, radar trap, air speed gauge, wind sock, wind speed meter, pedometer, fast, speedy, swift, rapid, quick, fleet, aliped, nimble, agile, expeditious, express, active, flying, galloping, light footed, nimble footed, winged, eagle winged, mercurial, electric, telegraphic, light-legged, light of heel, swift as an arrow, quick as lightning, quick as a thought, swiftly, with speed, apace, at a great rate, at full speed, at railway speed, full drive, full gallop, posthaste, in full sail, tantivy, trippingly, instantaneously, under press of sail, under press of canvas, under press of sail and steam, velis et remis, on eagle's wing, in double quick time, with rapid strides, with giant strides, a pas de geant, in seven league boots, whip and spur, ventre a terre, as fast as one's legs will carry one, as fast as one's heels will carry one, as fast as one can lay legs to the ground, at the top of one's speed, by leaps and bounds, with haste, vires acquirit eundo, I'll put a girdle about the earth in forty minutes, swifter than arrow from the Tartar's bow, go like a bat out of hell, tempus fugit.