Hypocritical (9)
'hypocritical' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for sanctimonious that I've seen before include "Canting" , "Making show of being morally superior" , "Ostentatiously pious" , "Affecting piety" , "Hypocritically moral" .)
'hypocritical' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for insincere that I've seen before include "fake" , "Hollow" , "Dishonest" , "Dissembling" , "Not genuine, hypocritical" .)