Antonyms for the phrase "got in with" would include phrases such as "fell out with," "went against," "opposed," and "disagreed with." When someone "got in with" a group or individual, it implies a sense of acceptance, compatibility, or agreement. However, when someone falls out with a person or group, it means there is a lack of connection, distance or dissonance. Opposing ideas, beliefs, or attitudes can also cause individuals to go against one another, leading to disagreements and the inability to "get in with" one another. In short, antonyms for "got in with" describe the opposite of acceptance, compatibility, and agreement.