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Webster 1828 Edition

pp.

Made hard, or more hard or compact; made unfeeling; made obstinate; confirmed in error or vice.

hardened

hardened ‎(comparative more hardened, superlative most hardened)

Unfeeling or lacking emotion due to experience; callous.
- The bloody scene could reduce even the most hardened soldier to tears.

unfeeling or lacking emotion due to experience; callous