Definition of psychotherapeutical in US English:

psychotherapeutical

adjective

  • Psychotherapeutic.

Origin

Early 20th century; earliest use found in The Academy: a monthly record of literature, learning, science, and art. From psycho- + therapeutical, after psychotherapy.

Pronunciation

psychotherapeutical

/ˌsʌɪkəʊˌθɛrəˈpjuːtɪkl/