Antonyms for the phrase "drew blood" could include "missed," "failed," "avoided," or "spared." These words suggest a lack of success in the act of causing injury or harm to another person. Other antonyms may include terms that describe healing, such as "cured," "mended," or "repaired." These words imply a restoration of health or well-being, rather than the infliction of pain or injury. Overall, antonyms for "drew blood" convey a sense of nonviolence, care, or compassion, and offer an alternative to the aggressive, harmful act that the original phrase describes.