Word Type

Adjective

Adjective

Verb

The word "hardened" can be used as adjective, adjective and verb.

Word Relationships

Opposites (Antonyms)

soft

Derived Terms

battle-hardened case-hardened nonhardened radiation-hardened unhardened

Derived From

harden

Inflected/Variant Forms

harden

Related Terms

callous

Similar Terms

curable hard hard sunbaked tough toughened

Synonym Network

abandoned annealed benumbed callous case hardened confirmed deadened depraved enured habituated impenitent incorrigible indurated insensible inured irreclaimable obdurate reprobate seared seasoned steeled tempered trained unfeeling

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.