RAPIDITY Synonyms: 45 Similar and Opposite Words

rapidity

noun

rə-ˈpi-də-tē

Definition of rapidity

as in velocity

a high rate of movement or performance the rapidity with which she can do mental math calculations is amazing

Synonyms & Similar Words

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of rapidity The two women’s powerful, mysterious bond is sketched in sharp yet subtle dramatic strokes that are all the more thrilling for their breathless rapidity. — Richard Brody, New Yorker, 3 Apr. 2026 The market is undervaluing the rapidity with which record revenues and strong yields are improving the balance sheet, which will lead to a significant re-evaluation of value as financial risks decline and capital is returned to shareholders. — Trefis Team, Forbes.com, 3 Mar. 2026 But this doesn’t explain the rapidity of the shift nor the fact that all the leading American AI research labs moved in the same direction. — Nick Srnicek, Wired News, 14 Jan. 2026 Still others warned of the rapidity with which democracy could give way to dictatorship. — Talya Zax, The Atlantic, 23 Dec. 2025 See All Example Sentences for rapidity

Recent Examples of Synonyms for rapidity

Noun

Essentially a form of computational fluid dynamics, the simulation divides the flow passages into a very large number of tiny regions and calculates things such as velocity, pressure, turbulence, and temperature throughout the component.

— Christopher McFadden, Interesting Engineering, 29 Aug. 2026
The curves ahead are posted at a third of my current speed, but the big Brembos scrub off velocity easily, and the Slingshot rails through corner after corner.

— William Roberson, Forbes.com, 29 Aug. 2026

Definition of velocity

Noun

Lennon is electric, but technically Stone is Antioch’s speed back.

— Mike McGraw, Chicago Tribune, 29 Aug. 2026
The rise lifted some components of the index into overbought territory, as measured by the relative strength index (RSI), a momentum indicator that tracks the speed and size of price changes.

— Tobias Burns, CNBC, 29 Aug. 2026

Definition of speed

Browse Nearby Words

rapid-fire

rapidity

rapidly

See all Nearby Words

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“Rapidity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rapidity. Accessed 1 Sep. 2026.

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Synonyms of rapidity

noun

Example Sentences

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