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 These include gravitational forces, commonly known as G-forces, that increase or decrease the pressure riders feel on their bodies during rapid acceleration and deceleration. — Katia Hetter, CNN Money, 16 Oct. 2026 There's also the worry that there will soon be a deceleration in the artificial intelligence spending cycle, which is going to shape what parts of the market do better and worse. — Sarah Min, CNBC, 16 Oct. 2026 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 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 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

Both agencies have seen a notable decline in Republican support.

— Morgan Chalfant, semafor.com, 15 Oct. 2026
Cardio workouts, meanwhile, can also reduce signs of brain aging and slow future cognitive decline.

— Maggie Ryan, Flow Space, 14 Oct. 2026

Definition of decline

Noun

Unlike most e-bikes, which have a mechanical connection between pedals and wheels, the TM-B utilizes a pedal-by-wire system that connects to a generator; riders can charge its battery simply by pedaling and braking.

— Charlotte Hu, Time, 15 Oct. 2026
Both brands offer a telematics safe driving program, which tracks your driving and bases your rate on factors like your braking, acceleration, speed and driving time.

— Liz Knueven, CNBC, 15 Oct. 2026

Definition of braking

Noun

Now, by reimagining live shopping for the very environment that accelerated its slowdown, TikTok Shop is seeing sizable gains.

— Noor Lobad, Footwear News, 13 Oct. 2026
That 8% revenue growth rate is a real slowdown compared with the 27% surge of the second quarter, where equities trading and deal-making exceeded expectations.

— Hugh Son,Laya Neelakandan,Leslie Picker,Ritika Shah, CNBC, 13 Oct. 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

With stimulus checks gone and student loan payments back, Maggiulli suggests the drop may partly be a return to normal.

— Nick Lichtenberg, Fortune, 17 Oct. 2026
For instance, the company launched its bronzing drops because community members asked for them on a TikTok live, and created a pickle lip balm because pickles were a huge trend on social media.

— Colleen McKown, CNBC, 16 Oct. 2026

Definition of drop

Noun

When healthy, Ohtani has the ability to break out of even the most dire of slumps with an otherworldly performance, like that three-homer (as a hitter), 10-strikeout (as a pitcher) all-timer.

— Maddie Lee, Los Angeles Times, 14 Oct. 2026
In other words, even when people and businesses think ahead and act in their own interests, sticky prices can keep the economy stuck in a slump.

— Greg Rosalsky, NPR, 13 Oct. 2026

Definition of slump

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decelerating

deceleration

decelerations

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“Deceleration.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/deceleration. Accessed 19 Oct. 2026.

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Synonyms of deceleration

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