Stiffened
Toughened
Toughened adjective - Able to withstand hardship, strain, or exposure.
Stiffened and toughened are semantically related. Sometimes you can use "Stiffened" instead the word "Toughened" as a verb or an adjective.
Nearby Word: toughening
Mutual synonyms
Related pairs
Cite this Source
Toughened and Stiffened. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/stiffened/toughened
Stiffened & Toughened. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/stiffened/toughened>.
Toughened or Stiffened. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/stiffened/toughened.
Google Ngram Viewer shows how "stiffened" and "toughened" have occurred on timeline