Stiffen and Separate

Opposite meaning words

Stiffen verb - To make more harsh, uncompromising, or severe.

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Separate is an antonym for stiffen in make or become harder topic.

Nearby Words: stiff, stiffness, stiffly, stiffening

Separate verb - To set or force apart.

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Stiffen is an antonym for separate.

Cite this Source

Separate and Stiffen. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/stiffen/separate

Stiffen & Separate. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/stiffen/separate>.

Separate or Stiffen. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/stiffen/separate.

Google Ngram Viewer shows how "stiffen" and "separate" have occurred on timeline