Definition

1. Noun:
   • A lack of emotion or sympathy; hardheartedness: "callosity" can refer to a state of being emotionally hardened or insensitive.
   • An area of thickened and hardened skin: "callosity" also refers to a localized thickening of the skin, typically caused by repeated pressure or friction.

Examples of Usage

• Noun:
  • The doctor noted a callosity on the patient's heel from years of ill-fitting shoes.
  • His callosity towards the suffering of others was shocking.

Advanced Usage

• Medical/Anatomical Context: In medical terminology, a "callosity" is a specific type of hyperkeratosis, often found on weight-bearing or frequently used areas of the body.
  • Plantar callosities are common in runners.
• Figurative/Literary Context: Used to describe emotional or moral insensitivity.
  • The novel explores the callosity that can develop in a life of constant hardship.

Variants and Related Words

• Callous (adjective): Emotionally hardened; unfeeling. Also, having calluses.
  • He was callous to her pleas.
  • His hands were callous from manual labor.
• Callus (noun): Primarily refers to the area of thickened skin. (Note: "Callus" and "callosity" are often used interchangeably for the skin condition, though "callosity" can be more technical.)
  • She developed a callus on her finger from writing.

Synonyms

• For hardened skin: Callus, keratosis, thickening.
• For hardheartedness: Hardness, insensitivity, obduracy, unfeelingness.

Antonyms

• For hardheartedness: Compassion, sensitivity, tenderness, empathy.

Noun

1. devoid of passion or feeling; hardheartedness
2. an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)