1. to make or become hard or callous
Usage: formal

1. hardened; made callous or unfeeling
Usage: formal

Examples

• Years of harsh criticism had indurated his heart against sympathy.
• The clay will indurate when exposed to high temperatures.
• His indurate attitude made it impossible to reason with him.
• The soil became indurate after the long drought.
• She tried to indurate herself against the painful memories.
• The indurate surface resisted all attempts at penetration.