The term 'cold-blooded' refers to the attribute of being emotionless, unfeeling, and without mercy. Its antonyms would be passionate, warm-blooded, and empathic. Passionate refers to having intense emotions and strong feelings. Warm-blooded means being compassionate, kind, and sympathizing with others. Empathic is the ability to understand and share the feelings of others. These antonyms are used to describe traits that are the opposite of being cold-blooded. They convey a sense of humanity, kindness, and warmth that can make someone more approachable and endearing. Using antonyms for 'cold-blooded' can help us express our feelings and emotions better, and convey ourselves as more rational and humane individuals.