Fastness and Lethargy

Opposite meaning words

Fastness noun - A high rate of movement or performance.

Usage example: the amazing fastness with which the boy took his shower had us wondering if he'd used any water

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Lethargy is an antonym for fastness.

Nearby Word: fasten

Lethargy noun - Physical or mental inertness.

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Fastness is an antonym for lethargy.

Nearby Word: lethargic

Cite this Source

Lethargy and Fastness. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fastness/lethargy

Fastness & Lethargy. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fastness/lethargy>.

Lethargy or Fastness. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fastness/lethargy.

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