as in deceleration
a usually gradual decrease in the pace or level of activity of something
scientists discovered that they could achieve the retardation of light if they shined it through a variety of substances
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Recent Examples of retardation
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, 28 July 2017
At the end Austen had psychomotor retardation and could barely move.
—Rene Chun, Los Angeles Magazine, 19 June 2017
The criteria were: episodes that last no longer than 2 months, and that do not include suicidal feelings, psychotic symptoms, psychomotor retardation, or feelings of worthlessness.
—Neuroskeptic, Discover Magazine, 15 Mar. 2013
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, 28 July 2017
At the end Austen had psychomotor retardation and could barely move.
—Rene Chun, Los Angeles Magazine, 19 June 2017
The criteria were: episodes that last no longer than 2 months, and that do not include suicidal feelings, psychotic symptoms, psychomotor retardation, or feelings of worthlessness.
—Neuroskeptic, Discover Magazine, 15 Mar. 2013
Recent Examples of Synonyms for retardation
Noun
-
Zscaler lost two key salespeople, and the deceleration is palpable.—
Jim Cramer,
CNBC,
27 May 2026
-
At best, this method could be deployed as part of a hybrid strategy that uses a separate system for deceleration.—
Kai James,
The Conversation,
26 May 2026
Noun
-
Tending to Barbara in her days of decline is her child, a trans man, who Barbara refers to as her daughter throughout.—
Literary Hub,
Literary Hub,
11 June 2026
-
The decline suggests a blow to small businesses that can’t afford the fee, but previously benefited from the visa program.—
Jacqueline Munis,
Fortune,
10 June 2026
Noun
-
This slowdown, however, is not investment thesis changing for us as orders tend to be lumpy.—
Morgan Chittum,
CNBC,
9 June 2026
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Still, California’s slowdown is minor compared to the rest of the country.—
Jonathan Lansner,
Oc Register,
7 June 2026
Noun
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That concept is already visible in production EVs through regenerative braking systems and one-pedal driving modes.—
James Morris,
Forbes.com,
6 June 2026
-
Electric vehicles made regenerative braking, active safety systems, and over-the-air software updates normal.—
Connie Etemadi,
USA Today,
4 June 2026
Noun
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Submissions for variety special (pre-recorded) tumbled to 66 from 89, a 23-title plunge that accounts for roughly half the year’s overall drop.—
Michael Schneider,
Variety,
12 June 2026
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Combine 2 cups of water, 1 teaspoon of liquid soap, 10 drops of peppermint oil, and 10 drops of garlic extract in a spray bottle and shake well.—
SJ McShane,
Martha Stewart,
11 June 2026
Noun
-
Zach Neto was hit by a pitch and Mike Trout ended an 0-for-22 slump with a single to load the bases.—
Los Angeles Times,
Los Angeles Times,
10 June 2026
-
Suzuki said Trout is hitting the ball better than the slump suggests.—
Jeff Fletcher,
Oc Register,
9 June 2026
Cite this Entry
“Retardation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/retardation. Accessed 13 Jun. 2026.
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