DECELERATION Synonyms: 25 Similar and Opposite Words

deceleration

noun

Definition of deceleration

as in decline

a usually gradual decrease in the pace or level of activity of something demand for our product is dropping, so I have ordered a deceleration of production

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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 deceleration Concerns about this recent deceleration aside, a slight quarter-to-quarter boost is obviously preferable to the bundle’s comparable loss of 953,000 customers between the first and second quarters of this year. — Anthony Crupi, Sportico.com, 23 Sep. 2026 Altman and SpaceX's Elon Musk quickly backed Amodei's push for deceleration. — Cj Haddad, CNBC, 23 Sep. 2026 The approval includes a condition requiring a deceleration taper lane at the Sierra Wilds entrance on Wildcat Boulevard. — Nicole Buss, Sacbee.com, 23 Sep. 2026 Regenerative braking and deceleration also convert kinetic energy into driving range for the Prius by feeding its self-charging hybrid battery. — Charles Singh, USA Today, 11 Sep. 2026 The beds can contain hundreds of blocks laid out in a grid, growing progressively deeper so an aircraft slows without subjecting the landing gear — or the people aboard — to extreme deceleration forces that can be deadly in a crash. — Pete Muntean, CNN Money, 8 Sep. 2026 But Delapierre was flung forwards violently by the rapid deceleration and suffered a nasty face-plant into the cockpit. — Andrew Rice, New York Times, 20 Aug. 2026 The record proves that the silent cabin, instant torque and smooth deceleration of electric-vehicle (EV) driving does not have to be derived from a charging grid. — New Atlas, 13 Aug. 2026 This would lead to massive deceleration forces that instantly pulverize standard tracking electronics, leaving search teams completely blind. — Mrigakshi Dixit, Interesting Engineering, 10 July 2026

Recent Examples of Synonyms for deceleration

Noun

This was done three times per hill, each wall beginning where the previous one stopped but positioned to follow the direction that represents the most rapid topographical decline.

— Jeffrey Weiss, Artforum, 1 Oct. 2026
The Wall Street Journal reported the exodus at the time as a 17% decline in two years.

— Nick Lichtenberg, Fortune, 1 Oct. 2026

Definition of decline

Noun

The train can recharge using existing 480V cabling in yards and terminals, through dedicated charging infrastructure, and by recovering energy through regenerative braking.

— Prabhat Ranjan Mishra, Interesting Engineering, 1 Oct. 2026
Today, software touches nearly every aspect and dimension of the vehicle, from battery management to infotainment, braking, cybersecurity and advanced driver assistance.

— Rajjie Sarmey, Forbes.com, 25 Sep. 2026

Definition of braking

Noun

Despite recent calls from tech giants for a slowdown in AI development, capital expenditure on AI infrastructure remains on an expansion path, spanning data centers, chips, and power generation.

— , CNBC, 29 Sep. 2026
Others have rejected calls for an AI slowdown, arguing that the risks are overstated and restrictions on AI research could cause China to outpace the United States.

— Joe Walsh, CBS News, 29 Sep. 2026

Definition of slowdown

Noun

The Everrati's left pedal operates pads on discs in the normal fashion, but the motors also give powerful regenerative retardation when the accelerator is lifted.

— Mike Duff, Car and Driver, 18 June 2021
The policy of retardation of submarine technology ended right after the beginning of the Anglo-German naval race (marked by the German Naval Laws of 1898 and 1900).

— chicagotribune.com, chicagotribune.com, 28 July 2017

Definition of retardation

Noun

On Friday, Tesla reported better-than-expected third-quarter vehicle deliveries, lifting the stock almost 5%, but the company still posted a 2% year-over-year drop.

— Lora Kolodny, CNBC, 3 Oct. 2026
The practical argument for wind-and-rain protection applies equally to spring transitional weather, and the trickle-down to Zara and Uniqlo means the shape will stay in stores well past this fall’s drop cycle.

— Lauren Schuster, Miami Herald, 2 Oct. 2026

Definition of drop

Noun

The latest update on consumer confidence from business group The Conference Board shows a slump in September.

— Damian J. Troise, Los Angeles Times, 29 Sep. 2026
Retail sales slowed further, and the urban investment slump deepened in August, while industrial output rebounded on the back of exports.

— Anniek Bao, CNBC, 28 Sep. 2026

Definition of slump

Browse Nearby Words

decelerating

deceleration

decelerations

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“Deceleration.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/deceleration. Accessed 4 Oct. 2026.

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Synonyms of deceleration

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