Definition of personality disorder in US English:

personality disorder

noun

Psychiatry
  • A deeply ingrained pattern of behaviour of a specified kind that deviates markedly from the norms of generally accepted behavior, typically apparent by the time of adolescence, and causing long-term difficulties in personal relationships or in functioning in society.

    ‘this personality disorder is characterized by a lack of guilt and an inability to form lasting relationships’
    • ‘People with schizoid personality disorder avoid relationships and do not show much emotion.’
    • ‘The former have an avoidant personality style, the latter an avoidant personality disorder.’
    • ‘Antisocial personality disorder is best understood within the context of a broader category.’
    • ‘The long-term projection for people with paranoid personality disorder is bleak.’
    • ‘It seems the defendant is suffering from a paranoid personality disorder.’

Pronunciation

personality disorder

/ˌpərsnˈælədi dɪˈsɔrdər//ˌpərsnˈalədē diˈsôrdər/