In the ball park and Self-willed

Self-willed and in the ball park are semantically related. In some cases you can use "Self-willed" instead an adjective phrase "In the ball park".

Self-willed adjective - Sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion.

In the ball park and self-willed are semantically related. Sometimes you can use "In the ball park" instead an adjective phrase "Self-willed".