1. 无情的：hardheaded 冷静的 | hardhearted 无情的 | hardihood 胆大
2. 心肠硬的：hardheadedlyimmovablyimperturbablysoberly 冷静地 | hardhearted 心肠硬的 | hardie 尖锐底模
3. 无情的/心肠硬的/冷酷的：hardheadedly /冷静地/ | hardhearted /无情的/心肠硬的/冷酷的/ | hardie /尖锐底模/
adj
1. devoid of feeling for others
e.g. an unfeeling wretch
Synonym: stonyhearted unfeeling
2. lacking in feeling or pity or warmth
Synonym: heartless