The phrase "cut to the quick" refers to a deep emotional wound that causes pain and distress. Some antonyms for this phrase might include, "healed," "soothed," and "calmed." If someone were to say that a kind word from a friend "soothed" their heart after a difficult experience, this would be an antonym for "cut to the quick." Similarly, if someone were to say that a beautiful sunset "calmed" their emotions after a stressful day, this would also be an example of an antonym for the phrase. Essentially, any word or action that brings comfort and relief to an emotional wound could be considered an antonym for "cut to the quick.