Toughening synonyms

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Synonyms for Toughening. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/synonyms/toughening

Synonyms for Toughening. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/synonyms/toughening>.

Synonyms for Toughening. 2016. Accessed July 21, 2026. https://thesaurus.plus/synonyms/toughening.