What does hardened mean?
Hardened describes something made tougher, stronger, or less vulnerable, whether through physical treatment, difficult experience, or a firm decision not to change. A hardened metal is resistant to wear or damage, while a hardened soldier is toughened by combat. The word can also imply emotional detachment, stubbornness, or resistance to influence: someone with a hardened heart may have become less sympathetic, and a hardened criminal may be particularly resistant to rehabilitation. In the phrase “hardened against,” the word emphasizes deliberate or gradual resistance to fear, temptation, criticism, or other pressures. “Hardened” is the past-tense and past-participle form of the verb “harden,” but it is especially frequent in adjectival use. It appears widely in British and American English and can sound descriptive, severe, or occasionally moralistic depending on the context and the person or thing being described.
Made tough, strong, resistant, or less sensitive; often implying that this quality has been developed through experience or repeated exposure.
"The veterans returned hardened but wary of the peace talks."
Common in figurative descriptions of people, attitudes, materials, and conditions.
The past tense and past participle of “harden,” meaning to make or become hard, tough, resistant, or emotionally uncompromising.
"The heat gradually hardened the clay."
Usually used with a subject in the past, or as a participle in phrases such as “hardened by experience.”
Hardened can describe steel that resists force and a person who resists fear: in both cases, the word suggests strength shaped by difficulty.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does hardened come from?
The word comes from the English verb “harden,” which was formed from “hard” with the suffix “-en.” The adjective and participial form “hardened” developed alongside that verb in Middle English and has long been used both for physical processes and for figurative changes in character or attitude. Related words such as “hardy,” “hardness,” and “hardship” continue to reflect the same Germanic root.
How hardened is actually used
The adjective is common in both formal and informal contexts. “Hardened” often suggests not merely strength but a process of exposure, experience, or deliberate treatment; “battle-hardened,” for example, is especially associated with military experience, while “hardened criminal” and “hardened heart” convey social or moral toughness.
Easily confused with hardened
Harden is the base verb meaning to make or become hard, while hardened is its past-tense and past-participle form, often used as an adjective.