CALLOUS

adj. hard; unfeeling

n. patch of hardened skin

v. become hard, become roughened; make hard or rough, make callous

A callus (or callous) is an especially toughened area of skin which has become relatively thick and hard as a response to repeated contact or pressure. In botany, the term is also used to announce a condition of thickened surfaces of leaves or other plant parts. Since repeated contact is required, calluses are most often found on hands or feet. Calluses are generally not harmful, but may sometimes lead to other problems, such as infection. Shoes that fit tightly can often produce calluses on the feet. String instrument players develop calluses where their fingers make contact with the strings, but these calluses are often desirable as they help alleviate the pain from the tension of the strings and make playing easier. Dancers often develop calluses on the soles of their feet from dancing barefoot, which makes performing turns less difficult. Video game players may develop calluses on their thumbs, especially if using a controller with a non-ergonomic D-pad design. Frequent use of a writing implement may lead to a callus on the middle finger, commonly known as a "writer's bump".
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Verb
1. make insensitive or callous; deaden feelings or morals
(synonym) cauterize, cauterise
(hypernym) inure, harden, indurate
Adjective
1. emotionally hardened; "a callous indifference to suffering"; "cold-blooded and indurate to public opinion"
(synonym) thick-skinned, indurate, pachydermatous
(similar) insensitive

(a.)
Hardened; indurated.
  

(a.)
Hardened in mind; insensible; unfeeling; unsusceptible.
  

adj.
1. hard
سخت , کڑا , گھٹيلا
2. insensible
سخت , کٹھور
become callous
کٹر ہونا