harden'd

Adjective

hardened (comparative more hardened, superlative most hardened)

1. Made physically hard.
   • hardened steel
2. Having been accustomed or desensitized to something unpleasant through exposure or experience; inured.
   • hardened police officers

   Synonyms:

   habituated, toughened, hard-bitten

3. Unfeeling; pitiless; callous.
   • The bloody scene could reduce even the most hardened soldier to tears.

   Synonyms:

   harsh, severe, brutal, callous, cold, insensate, hardhanded, cold-eyed, cruel, dour

4. Firmly established in a behavior seen as bad; unlikely to change one's ways; inveterate.
   • hardened criminals
5. Having extra defences against attack; highly fortified.
   • a hardened air base