phantastic

comparative more phantastic · superlative most phantastic

1. archaicArchaic spelling of fantastic.

   With this we affirm the important fact that man in his phantastic thinking has kept a condensation of the psychic history of his development. An extraordinarily important task, which even today is hardly possible, is to give a systematic description of phantastic thinking.

   1916, chapter I, in Carl Gustav Jung, Beatrice M. Hinkle, transl., Psychology of the Unconscious, Moffat, Yard and Company, page 36

plural phantastics

1. obsoleteAny hallucinogenic drug.