WordNet (r) 3.0 (2006):

psychoneurotic
    adj 1: affected with emotional disorder [syn: neurotic,
           psychoneurotic] [ant: unneurotic]
    n 1: a person suffering from neurosis [syn: neurotic,
         psychoneurotic, mental case]

Moby Thesaurus II by Grady Ward, 1.0:

48 Moby Thesaurus words for "psychoneurotic":
   alcoholic, alternating personality, antisocial personality,
   disordered, disordered personality, disturbed,
   disturbed personality, double personality, drug user,
   dual personality, emotionally unstable personality, escapist,
   hostile personality, hypochondriac, hypochondriast, hysteric,
   idiot, imaginary invalid, immature personality,
   inadequate personality, inferior personality, malade imaginaire,
   maladjusted personality, mentally defective personality,
   moral insanity, multiple personality, neurasthenic, neuropath,
   neurotic, neurotic personality, paranoid personality,
   perverse personality, phobic, psychasthenic, psychopath,
   psychopathic personality, psychotic, psychotic personality,
   schizoid, schizoid personality, seclusive personality,
   sexual psychopath, shut-in personality, sociopath,
   split personality, valetudinarian, valetudinary,
   weak personality