i-adjective
sanctimonious; overly pious; priestly; monkish
Describes a person or attitude that is excessively pious, preachy, or holier-than-thou, often with a negative connotation. Literally 'smelling of a monk'.
彼の説教じみた話し方は、なんだか坊主くさい。
His preachy way of talking feels somehow sanctimonious.
あの政
I'm fed up with that politician's holier-than-thou attitude.