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

Definition of rapidity

: the quality or state of being rapid

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Examples of rapidity in a Sentence

the rapidity with which she can do mental math calculations is amazing
Recent Examples on the Web Among racial and ethnic groups rising from similar circumstances, historians have described the rapidity of these gains as unprecedented. Jason L. Riley, WSJ, 1 June 2021 The rapidity of covid-19 vaccine development and distribution puts the lack of an HIV vaccine in stark contrast. Arkansas Online, 23 May 2021 Some true stories, especially ones that evolve with such rapidity and complexity, just can’t be told in real time. Washington Post, 5 May 2021 The blows struck by Ma Qiang's command fell with remarkable rapidity. Elliot Ackerman, Wired, 16 Feb. 2021 By Panasonic Recent decades have yielded several revelations about livewiring, but perhaps the biggest surprise is its rapidity. David Eagleman, Time, 29 Dec. 2020 While the rapidity of gains is sure to remind some of the dot-com days, a few big differences exist. Katherine Greifeld, Bloomberg.com, 24 Nov. 2020 As the permafrost thaws with increasing rapidity, scientists’ emerging challenge is to discover and identify the microbes, bacteria and viruses that may be stirring. Kimberley R. Miner, Scientific American, 20 Nov. 2020 The rapidity of the shake-up is noteworthy since it’s taking place inside museums, a field with its gaze fixed on the past. Mary Carole Mccauley, baltimoresun.com, 20 Nov. 2020

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.

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First Known Use of rapidity

1654, in the meaning defined above

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Time Traveler for rapidity

Time Traveler

The first known use of rapidity was in 1654

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Statistics for rapidity

Last Updated

13 Jun 2021

Cite this Entry

“Rapidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rapidity. Accessed 16 Jun. 2021.

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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.


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