The "paranoid-schisoid position" is a concept used in psychoanalytic theory to describe a psychological state where a person's sense of self and others is fragmented and unstable. This term is not widely used outside of this field, but there are some synonyms that can be used to describe similar concepts. These include "anxious attachment style," "borderline personality disorder," "dissociative identity disorder," and "splitting." While these terms do not encompass the entirety of the paranoid-schisoid position, they do describe related psychological states where a person struggles to maintain stable relationships and perceptions of the self and others.