"Being tight with" refers to being close or having a strong bond with someone, but there are times when we need to express the opposite sentiment. One antonym for "being tight with" is being distant, indicating a lack of closeness or emotional connection. Another antonym is being indifferent, showing a complete lack of interest or concern in someone. Alternatively, one could use the phrase "keeping one's distance," which implies a deliberate effort to maintain a separation. While being close to others can be valuable, it's also crucial to recognize when distance and separation are necessary for the sake of personal boundaries or healthy relationships.