Synonyms and Antonyms of toughen

1 to increase the ability of (as a muscle) to exert physical force
  • weight lifting will help toughen those flabby muscles of yours
Synonyms of toughen
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Antonyms of toughen
2 to make able to withstand physical hardship, strain, or exposure
  • hiking every morning through snow and ice toughened him considerably
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Antonyms of toughen
3 to make more harsh, uncompromising, or severe
  • attempts to toughen conditions under which waivers from military service would be permitted
Synonyms of toughen
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Antonyms of toughen