The antonyms for the phrase "be on the back of" are diverse and depend on the context in which the phrase is used. One antonym could be "let go," meaning to release or relinquish any pressure or expectation on an individual. Another antonym could be "ignore," suggesting a lack of attention or focus directed towards a person. Alternatively, one might say "give space" to an individual, indicating the need to provide room and freedom to operate independently. These antonyms portray different responses to the situation, highlighting the importance of understanding the context and choosing the correct approach.