hardened

(s) used of persons; emotionally hardened
- faced a case-hardened judge
case-hardened, hard-boiled,
(a) made hard or flexible or resilient especially by heat treatment
- a sword of tempered steel
- tempered glass
tempered, toughened, treated,
(a) protected against attack (especially by nuclear weapons)
- hardened missile silos
(s) made tough by habitual exposure
- hardened fishermen
- "a peasant, dark, lean-faced, wind-inured"- Robert Lynd
- "our successors...may be graver, more inured and equable men"- V.S.Pritchett
enured, inured,
(s) converted to solid form (as concrete) set,

case-hardened hard-boiled tempered toughened treated enured inured set

unhardened untempered soft