not caring about other people’s feelings, pain or problems 冷酷无情的；无同情心的；冷漠的synonym cruel, unfeeling- a callous killer/attitude/act冷血杀手；漠不关心的态度；冷酷的行为
- a callous disregard for the feelings of others对他人感情的漠视
Extra Examples- He was convicted of the particularly callous murder of two teenage boys.他因对两名十几岁男孩的残酷杀害而被定罪。
- I still can't believe they were so callous.我仍然不敢相信他们是如此冷酷无情。
- The troops showed a callous disregard for life and property.那支部队对生命和财产表现得麻木不仁。
Oxford Collocations DictionaryCallous is used with these nouns: See full entry Word Originlate Middle English (in the Latin sense): from Latin callosus ‘hard-skinned’.