from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having calluses; toughened: callous skin on the elbow.
- adj. Emotionally hardened; unfeeling: a callous indifference to the suffering of others.
- transitive v. To make or become callous.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Emotionally hardened; unfeeling and indifferent to the suffering/feelings of others.
- adj. Having calluses.
from the GNU version of the Collaborative International Dictionary of English
- adj. Hardened; indurated.
- adj. Hardened in mind; insensible; unfeeling; unsusceptible.
from The Century Dictionary and Cyclopedia
- Hard; hardened; indurated, as an ulcer, or the skin on some part of the body from exposure to continuous pressure or friction: as, “a callous cicatrice,” ; “a callous ulcer,”
- Hardened in mind or feelings; insensible; unfeeling: as, “the callous diplomatist,”
- In entomology, swollen and smooth: as, a callous margin, one very thick and irregularly rounded or lumpy. Synonyms
- To harden or make callous.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having calluses; having skin made tough and thick through wear
- adj. emotionally hardened
- v. make insensitive or callous; deaden feelings or morals
Middle English, from Old French cailleux, from Latin callōsus, from callum, hard skin.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin callōsus ("hard-skinned"), from callum ("hardened skin") + -ōsus. (Wiktionary)