Definition of regressionnext
as in reversion
the act or an instance of going back to an earlier and lower level especially of intelligence or behavior the regression to really childish behavior that boys often undergo when put in large groups

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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 regression The Phillies’ 6-2 loss to the Atlanta Braves in the wild-card clincher Thursday night marked their fourth straight year of regression in the postseason since appearing in the 2022 World Series. — Ken Rosenthal, New York Times, 2 Oct. 2026 The downward spiral was driven by offensive regression among core players, inconsistent starting pitching, a second-half bullpen collapse and some of the worst defensive metrics in Major League Baseball. — Alejandro Avila Outkick, FOXNews.com, 29 Sep. 2026 But a combination of injuries and regression by the bullpen and several of the team's top offensive stars led to a 2026 season filled with disappointment. — ABC News, 27 Sep. 2026 Every successful attack path should become a permanent regression test owned by the control team and run after material changes. — Expert Panel®, Forbes.com, 14 Sep. 2026 See All Example Sentences for regression
Recent Examples of Synonyms for regression
reversion
Noun
  • Referred to as reversions, these should also be removed promptly.
    — Nadia Hassani, The Spruce, 12 Sep. 2026
  • That sense is epitomised by the reversion to goalkeepers who can, unlike some of the strugglers from 2022-23, actually make saves on a consistent basis.
    — Michael Cox, New York Times, 21 Aug. 2026

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

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