Lessen and Summate

Opposite meaning words

Lessen verb - To make smaller in amount, volume, or extent.

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Summate is an antonym for lessen.

Nearby Words: lessening, less

Summate verb - To combine (numbers) into a single sum.

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Lessen is an antonym for summate in accumulation topic.

Cite this Source

Summate and Lessen. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/lessen/summate

Lessen & Summate. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/lessen/summate>.

Summate or Lessen. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/lessen/summate.

Google Ngram Viewer shows how "lessen" and "summate" have occurred on timeline