The definition of celerity is a very fast motion.
A written message, particularly an official communication, sent with speed.
Speed is a slang term for the street drug methamphetamine.
(Physics) The rate of change of velocity with respect to time.
Rash or headlong action; precipitateness:
A manner of walking or running:
The speed and direction of motion of a moving body. Velocity is a vector quantity.
A sending forth or setting forth the execution of some object of consequence; progress.
Eagerness to do, act, go, etc. quickly
(Slang) A way of making money, esp. a dishonest way
Find another word for rapidity. In this page you can discover 26 synonyms, antonyms, idiomatic expressions, and related words for rapidity, like: swiftness, celerity, dispatch, speed, acceleration, fleetness, haste, pace, promptness, quickness and velocity.