split personality

1. 1.

   a relatively rare dissociative disorder in which the usual integrity of the personality breaks down and two or more independent personalities emerge

   Synonymsmultiple personality

   Broaderdissociative disorder

Questions about split personality

What does split personality mean?

split personality means "a relatively rare dissociative disorder in which the usual integrity of the personality breaks down and two or more independent personalities emerge".

What is another word for split personality?

Close synonyms include multiple personality. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is split personality a common word?

split personality is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.