The word "cold-hearted" is often used to describe someone who is unfeeling, callous, and lacking empathy. If we were to look for antonyms or opposite words for "cold-hearted," we would look for words that describe people who are warm, compassionate, and empathetic. Some of these antonyms include the words "kind-hearted," "loving," "generous," "sympathetic," "caring," and "empathetic." These words describe individuals who are sensitive to the feelings and needs of others and are willing to extend themselves to provide comfort and support. Using positive and compassionate language can help create a more understanding and inclusive world for all people.