PIETISTIC
pietistic, holier-than-thou, pietistical, pharisaic, pharisaical, sanctimonious, self-righteous
(adjective) excessively or hypocritically pious; “a sickening sanctimonious smile”
pietistic, pietistical
(adjective) of or relating to Pietism; “the Pietistic movement”
Source: WordNet® 3.1
Etymology
Adjective
pietistic (comparative more pietistic, superlative most pietistic)
Pertaining to pietism, especially that associated with Luther and his followers; excessively pious.
Source: Wiktionary
Pi`e*tis"tic, Pi`e*tis"tic*al, a.
Definition: Of or pertaining to the Pietists; hence, in contempt,
affectedly or demonstratively religious. Addison.
Source: Webster’s Unabridged Dictionary 1913 Edition