Deceleration and Speedup

Opposite meaning words

Deceleration noun - The act of decelerating; decreasing the speed.

Usage example: he initiated deceleration by braking

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Speedup is an antonym for deceleration in acceleration topic.

Speedup noun - The act of accelerating; increasing the speed.

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Deceleration is an antonym for speedup.

Nearby Words: speed, speeding

Cite this Source

Speedup and Deceleration. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/deceleration/speedup

Deceleration & Speedup. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/deceleration/speedup>.

Speedup or Deceleration. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/deceleration/speedup.

Google Ngram Viewer shows how "deceleration" and "speedup" have occurred on timeline