schizophrenic

Short definition from Wiktionary

Adjective

1. 1
   Of or relating to schizophrenia.
2. 2
   Afflicted with schizophrenia; having difficulty with perception of reality.
3. 3
   Exhibiting more than one personality; having a wildly changeable personality.
4. 4
   Having qualities that strongly conflict or are at odds.

Noun

1. 1
   A person suffering from schizophrenia.