SCHIZOID

schizoid

(adjective) marked by withdrawal and inability to form close relationships

schizoid, schizophrenic

(adjective) of or relating to or characteristic of schizophrenia

Source: WordNet® 3.1

Etymology

Adjective

schizoid (comparative more schizoid, superlative most schizoid)

characterized by social withdrawal and emotional coldness or flattened affectivity

(archaic) schizophrenic

(figurative) Behaving as if one has more than one personality; wildly changeable.

Noun

schizoid (plural schizoids)

(psychiatry) someone with schizoid personality disorder

(archaic) someone with schizophrenia

Source: Wiktionary