The antonyms for "hard bitten" include tender, compassionate, gentle, kind, and sympathetic. These words are used to describe people who possess qualities such as kindness, empathy, and warmth towards others. For instance, a tender-hearted person is someone who is compassionate and sensitive towards others' emotions. On the other hand, a kind person is someone who is considerate and understanding towards others. Similarly, gentle and sympathetic also refer to the traits of a person who is delicate, concerned, and caring towards others. Therefore, in contrast to "hard bitten," these antonyms signify positive traits that promote harmonious social relations.