ra·​pid·​i·​ty | \ rə-ˈpi-də-tē How to pronounce rapidity (audio) , ra- \

Definition of rapidity

: the quality or state of being rapid

Examples of rapidity in a Sentence

the rapidity with which she can do mental math calculations is amazing
Recent Examples on the Web The science has grown increasingly clear: In a warming, changing world, new viruses will shift between animals and into people with alarming rapidity and frequency. Melody Schreiber, The New Republic, 30 Apr. 2022 It’s a puzzle Wang hopes A.I. can solve, with rapidity. Erin Prater, Fortune, 14 June 2022 Increasingly, the streamer’s biggest movies have come and then fizzled, with head-spinning rapidity. Andy Meek, BGR, 1 June 2022 Another may be the rapidity of the unionization drive’s expansion, which began with pro-union votes at three Buffalo-area stores. Michael Hiltzik, Los Angeles Times, 24 Apr. 2022 To illustrate the rapidity of Dragon's rise, consider that China, widely regarded as having the second-most capable civil space program in the world, has launched 20 astronauts since 2003. Eric Berger, Ars Technica, 8 Apr. 2022 Celentano's ascent from FCC2 to earning a small honor from MLS underscored the rapidity with which FCC players can ascend to MLS minutes. Pat Brennan, The Enquirer, 26 Apr. 2022 The rapidity with which the world food situation has deteriorated is alarming. Gary Robbins, San Diego Union-Tribune, 1 Apr. 2022 His unprovoked invasion of Ukraine has resulted in geopolitical shifts astonishing in their scale and rapidity. Richard Fontaine, WSJ, 11 Mar. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rapidity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of rapidity

1654, in the meaning defined above

History and Etymology for rapidity

borrowed from French & Latin; French rapidité, going back to Middle French, borrowed from Latin rapiditāt-, rapiditās, from rapidus "flowing violently, rapid entry 1" + -itāt-, -itās -ity

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Time Traveler for rapidity

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The first known use of rapidity was in 1654

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Dictionary Entries Near rapidity

rapid-fire mount



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Last Updated

31 Jul 2022

Cite this Entry

“Rapidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rapidity. Accessed 8 Aug. 2022.

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More Definitions for rapidity


ra·​pid·​i·​ty | \ rə-ˈpi-də-tē How to pronounce rapidity (audio) \

Kids Definition of rapidity

: the quality or state of being rapid She said it with such rapidity I missed it.

More from Merriam-Webster on rapidity

Nglish: Translation of rapidity for Spanish Speakers

Britannica English: Translation of rapidity for Arabic Speakers


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