Holier-than-thou: Making an exaggerated show of holiness or moral superiority.

Sanctimonious like to act as if they're holy.
by Jafje April 10, 2007
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the word sanctimonious is another word for big headed,self riteous, bitch, etc. sanctimonious people think they're it and act like it. they go around thinking they're brilliant, being sanctimonious is not a good thing!!
'oh she's such a sanctimonious bitch' observing somebody who is sanctimonious
'why are you so sanctimonious?!?!'why are you so stuck up your own ass?
by channie March 27, 2005
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giving a hypocrital appearance of piety
if i was sanctimonious, i would probably give lectures about the 10 commandments, then go rob banks.
by Robert June 21, 2004
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Of or having a higher morality than is common.
Most Christians would say the New Testament is more sanctimonious than any other Holy book.
by VeritasLuxMea June 9, 2018
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a term that not only perfectly describes a kind of hypocritically high-minded atheism but also has the added benefit of being very funny due to the fact that it is even intelligible (coined by author / blogger Frank Portman, 2006)
Let's go to Ophelia's house for a few drinks ... Actually, on second thought, let's not, the whole sanctimonious atheism thing gets old really fast.
by Mr. Headache May 8, 2011
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