📖 WordNook

hardened

adjective
  1. converted to solid form (as concrete)
    set
  2. used of persons
    “emotionally hardened”
    scheming
  3. protected against attack (especially by nuclear weapons)
    “hardened missile silos”
  4. made hard or flexible or resilient especially by heat treatment
    temperedtreatedtoughened
  5. made tough by habitual exposure
    “hardened fishermen”
    enuredinured