Prolong and Slow down

Opposite meaning terms

Prolong verb - To make longer.

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Slow down is an antonym for prolong.

Nearby Words: prolongation, prolonging

Slow down verb - Lose velocity; move more slowly.

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Prolong is an antonym for slow down in topics: lower, decrease, reduce the strength of, grow less or make less.

Cite this Source

Slow down and Prolong. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/prolong/slow_down

Prolong & Slow down. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/prolong/slow_down>.

Slow down or Prolong. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/prolong/slow_down.

Google Ngram Viewer shows how "prolong" and "slow down" have occurred on timeline