pietistic

pietistinen Pertaining to pietism, especially that associated with (w) and his followers; excessively pious.
1999, Joyce Crick, translating Sigmund Freud, The Interpretation of Dreams, I:

Quite apart from all the pietistic (transterm) and mystical writers ... we also encounter clear-sighted men averse to the fantastic who use this very inexplicability of the phenomena of dreams in their endeavours to support their religious belief in the existence and intervention of superhuman powers.