There are several synonyms for the phrase "pathological society." One term that comes to mind is "dysfunctional society," which suggests that the society has serious problems and is not functioning as it should.
Another synonym is "aberrant society," which emphasizes that the society is deviating from normal patterns or standards of behavior.
Some may also use the term "disordered society" to describe a community or culture that appears to be in a state of chaos or confusion.
Lastly, "maladaptive society" describes a group of people who have adapted poorly to their environment and circumstances, leading to various pathologies and negative outcomes. Regardless of the term used, these synonyms all suggest a society in need of significant reform and intervention in order to improve the well-being of its citizens.