Callous
adjective
having calluses; having skin made tough and thick through wear
“calloused skin”
Similar: calloused, thickened
verb
make insensitive or callous; deaden feelings or morals
Similar: cauterize, cauterise
adjective
emotionally hardened
“a callous indifference to suffering”
Similar: indurate, pachydermatous
Word family
callousness · callously · calloused · callousing