endurecido[Portugais]

adjectif satellite
1 : used of persons; emotionally hardened; "faced a case-hardened judge"
2 : 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
3 : converted to solid form (as concrete)
adjectif
1 : protected against attack (especially by nuclear weapons)