The term "brake heart" does not have established antonyms in the English language. "Brake heart" is not a recognized phrase in common usage, but it may be a misspelling of "break heart," which suggests intense emotional distress or heartbreak. Some possible antonyms for "break heart" could include "mend heart," "comfort heart," "rejoice heart," or "heal heart." However, these terms may not capture the full range of emotions and experiences associated with overcoming heartbreak. Ultimately, language is always evolving, and new antonyms may emerge over time as people find new ways to express themselves and their emotions.