ra·​pid·​i·​ty | \rə-ˈpi-də-tē, 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

A week after rescue divers emerged in a dark and flooded cave to discover that — against all odds — a missing team of Thai soccer players had somehow managed to survive 10 days of isolation, their rescue continued with astonishing rapidity. New York Times, "8 Saved, 5 to Go in Thai Cave Rescue," 9 July 2018 Community colleges and similar institutions can help, on a time scale more attuned to new technology’s rapidity. George P. Shultz, WSJ, "America Can Ride the 21st Century’s Waves of Change," 27 June 2018 The Swan Queen and Prince Siegfried begin with dreamlike rapidity; the music’s sped up. Alastair Macaulay, New York Times, "Review: ‘Frame by Frame,’ a Ballet That Puts a Filmmaker Center Stage," 3 June 2018 The exact nature of that something was tough to gauge given the rapidity with which things unraveled. David Murphy, Philly.com, "Poof: Ben Simmons, Sixers, and maybe the series just disappeared | David Murphy," 4 May 2018 By the time Holmes appears, the implausible coincidences in the plot have begun tumbling over each other with such rapidity that the appearance of the English sleuth seems merely routine. Newsweek, "Amazing Photos of Bioluminescent Phytoplankton," 14 Mar. 2018 In its realism and rapidity, Russia’s response to its crisis was the best of any emerging market this decade, says Mr Kouzmin. The Economist, "Putin’s fiscal fortressRussia’s credit rating rises; Brazil’s falls," 1 Mar. 2018 There was a rapidity and movement to Ohio State's offense that had been absent over the last two games. Bill Landis, cleveland.com, "Ohio State basketball ends skid with 79-52 win over Rutgers on Senior Night," 21 Feb. 2018 For them, the rapidity with which streaming has supplanted discs and tape as a viewing mode is a bug, not a feature. Michael Hiltzik, latimes.com, "Our film and video history is threatened by the rise of streaming video," 20 Dec. 2017

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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Statistics for rapidity

Last Updated

8 Nov 2018

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Time Traveler for rapidity

The first known use of rapidity was in 1654

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More Definitions for rapidity


ra·​pid·​i·​ty | \rə-ˈpi-də-tē \

Kids Definition of rapidity

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

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