Incapable of feeling or sensation; insensate or insensible
The definition of cruel is someone or something that deliberately causes pain or suffering.
Being neither too much nor too little; moderate:
Find another word for casehardened. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for casehardened, like: unfeeling, callous, unaffected, cruel, hardened and indifferent.