The language distortion that involves meaningless and disordered communication that is indicative of advanced schizophrenia is called perseveration tangentiality echolalia word salad

Meaningless and disordered communication that is tangential and loosely associated is a key aspect of advanced schizophrenia. There are no lab tests or other physical ways to diagnose the disease. Therefore, clinicians look at whether the clients exhibits disorganized thinking, in which the speaker's thoughts wander are unfocused, making communication very difficult.