A really fast thesaurus... with lots of synonyms.
Toughen has 33 synonyms. The top synonyms for toughen are fossilize, case harden, reinforce, invigorate, reinvigorate, vitrify, restrengthen, nerve and 25 more. Another word for toughen is fossilize. Browse the full list below.
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| Random | DefinitionA common synonym for toughen is fossilize. Other synonyms include case harden, reinforce, invigorate, reinvigorate.
Toughen has 33 synonyms listed on Thesaurasize.
(v): to make tough; to become tough
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