hardened

B2 · Upper Intermediate

adj. having a bad habit or way of life for so long that it is unlikely to change.

adj. firmly established in a specific behaviour or lifestyle, typically one viewed negatively by society.

“The police described the suspect as a hardened criminal with a long record.”

“The judge noted that the defendant was a hardened offender who had shown no inclination toward rehabilitation despite numerous previous convictions.”

C1 · Advanced Military Technical

adj. made stronger or more protected against an attack.

adj. reinforced or protected against physical or digital assault; highly fortified.

“The soldiers stayed inside a hardened bunker during the air raid.”

“The facility was housed in a hardened underground complex designed to withstand a direct hit from conventional explosives.”

B2 · Upper Intermediate

adj. made very hard or solid.

adj. having been made physically hard, tough, or rigid through a specific process.

Español:endurecido

“The hardened clay was difficult to break even with a hammer.”

“The workers applied a layer of hardened resin to the surface to ensure it would remain waterproof for several decades.”