Slow up and Speed up

Opposite meaning terms

Slow up verb - Lose velocity; move more slowly.

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Speed up is an antonym for slow up.

Speed up verb - Move faster.

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Slow up is an antonym for speed up.

Cite this Source

Speed up and Slow up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/slow_up/speed_up

Slow up & Speed up. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/slow_up/speed_up>.

Speed up or Slow up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/slow_up/speed_up.

Google Ngram Viewer shows how "slow up" and "speed up" have occurred on timeline