definition of
[callous]

[1] #1 callous s. [indurate, pachydermatous] emotionally hardened; "a callous indifference to suffering"; "cold-blooded and indurate to public opinion". wn

[2] #2 callous v. [cauterize, cauterise] make insensitive or callous; deaden feelings or morals. wn

[3] #3 callous s. [calloused, thickened] having calluses; having skin made tough and thick through wear; "calloused skin"; "with a workman's callous hands". wn