The phrase "am on one's case" typically connotes a negative connotation and implies that someone is being scrutinized or constantly monitored. In this sense, some antonyms for this phrase could be "hands-off," "disengaged," or "uninvolved." These words suggest a lack of attention, care, or interest in someone's affairs, usually in a positive way. Other antonyms for "am on one's case" could include "indifferent," "apathetic," or "unconcerned," which convey a sense of detachment or disregard for someone's situation. Altogether, these antonyms offer a range of ways to describe the opposite of the phrase, "am on one's case.