Definition of psychasthenic in US English:

psychasthenic

adjective

Psychology
  • Affected with psychasthenia; characteristic or symptomatic of psychasthenia.

noun

Psychology
  • A person with psychasthenia.

Origin

Early 20th century. From psychasthenia + -ic, after French psychasthénique.

Pronunciation

psychasthenic

/ˌsʌɪkəsˈθɛnɪk/