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toughen

see definition of toughen
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Synonyms for toughen

verb harden
  • strengthen
  • acclimate
  • acclimatize
  • anneal
  • brutalize
  • develop
  • inure
  • season
  • temper
  • climatize
  • make difficult

Antonyms for toughen

  • soften
  • flex
  • tenderize
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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