toughen


toughen

verb

Definition 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 beef (up), fortify, harden, toughen
2
to make able to withstand physical hardship, strain, or exposure <hiking every morning through snow and ice toughened him considerably>
Antonyms soften
3
to make more harsh, uncompromising, or severe <attempts to toughen conditions under which waivers from military service would be permitted>
Near Antonyms lessen, moderate, soften
Antonyms ameliorate, ease

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