'holier-than-thou' definitions:

Definition of 'holier-than-thou'

From: WordNet
adjective
Excessively or hypocritically pious; "a sickening sanctimonious smile" [syn: holier-than-thou, pietistic, pietistical, pharisaic, pharisaical, sanctimonious, self-righteous]

Definition of 'holier-than-thou'

From: GCIDE
  • holier-than-thou \holier-than-thou\ adj. being excessively or hypocritically pious while condemning others as being less virtuous than oneself.
  • Syn: pietistic, pietistical, pharisaic, pharisaical, sanctimonious, self-righteous. [WordNet 1.5 +PJC]