inadequate personality

[ĭn-ădĭ-kwĭt]
n.
  1. A personality disturbance characterized by an inability to cope with the social, emotional, occupational, and intellectual demands of life.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.