The word "more coupled" implies a stronger connection or bond between two entities or individuals. Therefore, its antonyms would suggest a weaker or nonexistent bond. Some antonyms for "more coupled" could include "loosely connected," "disconnected," "separated," "distant," "disengaged," or "uncoupled." Using these antonyms would indicate that there is little or no relationship, communication or bond between the objects or individuals in question. When trying to convey a message of detachment, independence or freedom from dependence, using antonyms of "more coupled" would be appropriate.